70801973 has 4 divisors (see below), whose sum is σ = 77238528. Its totient is φ = 64365420.

The previous prime is 70801921. The next prime is 70801993. The reversal of 70801973 is 37910807.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37910807 = 11 ⋅3446437.

It is a cyclic number.

It is not a de Polignac number, because 70801973 - 2¹⁰ = 70800949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70801993) 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, 3218261 + ... + 3218282.

It is an arithmetic number, because the mean of its divisors is an integer number (19309632).

Almost surely, 2^70801973 is an apocalyptic number.

It is an amenable number.

70801973 is a deficient number, since it is larger than the sum of its proper divisors (6436555).

70801973 is a wasteful number, since it uses less digits than its factorization.

70801973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6436554.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 70801973 is about 8414.3908276238. The cubic root of 70801973 is about 413.6964428993.

The spelling of 70801973 in words is "seventy million, eight hundred one thousand, nine hundred seventy-three".