70516247 has 4 divisors (see below), whose sum is σ = 70870800. Its totient is φ = 70161696.

The previous prime is 70516241. The next prime is 70516249. The reversal of 70516247 is 74261507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74261507 = 2503 ⋅29669.

It is a cyclic number.

It is not a de Polignac number, because 70516247 - 2²² = 66321943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70516241) 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, 176978 + ... + 177375.

It is an arithmetic number, because the mean of its divisors is an integer number (17717700).

Almost surely, 2^70516247 is an apocalyptic number.

70516247 is a deficient number, since it is larger than the sum of its proper divisors (354553).

70516247 is a wasteful number, since it uses less digits than its factorization.

70516247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354552.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 70516247 is about 8397.3952509097. The cubic root of 70516247 is about 413.1391929211.

The spelling of 70516247 in words is "seventy million, five hundred sixteen thousand, two hundred forty-seven".