70761973 has 4 divisors (see below), whose sum is σ = 74924460. Its totient is φ = 66599488.

The previous prime is 70761967. The next prime is 70761979. The reversal of 70761973 is 37916707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37916707 = 67 ⋅565921.

It is an interprime number because it is at equal distance from previous prime (70761967) and next prime (70761979).

It can be written as a sum of positive squares in 2 ways, for example, as 64915249 + 5846724 = 8057^2 + 2418^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70761973 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70761979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2081218 + ... + 2081251.

It is an arithmetic number, because the mean of its divisors is an integer number (18731115).

Almost surely, 2^70761973 is an apocalyptic number.

It is an amenable number.

70761973 is a deficient number, since it is larger than the sum of its proper divisors (4162487).

70761973 is a wasteful number, since it uses less digits than its factorization.

70761973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4162486.

The product of its (nonzero) digits is 55566, while the sum is 40.

The square root of 70761973 is about 8412.0136114964. The cubic root of 70761973 is about 413.6185214598.

The spelling of 70761973 in words is "seventy million, seven hundred sixty-one thousand, nine hundred seventy-three".