70624865 has 8 divisors (see below), whose sum is σ = 85152768. Its totient is φ = 56231280.

The previous prime is 70624861. The next prime is 70624867. The reversal of 70624865 is 56842607.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70624865 - 2² = 70624861 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70624861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32417 + ... + 34526.

It is an arithmetic number, because the mean of its divisors is an integer number (10644096).

Almost surely, 2^70624865 is an apocalyptic number.

It is an amenable number.

70624865 is a deficient number, since it is larger than the sum of its proper divisors (14527903).

70624865 is a wasteful number, since it uses less digits than its factorization.

70624865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67159.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 70624865 is about 8403.8601249664. The cubic root of 70624865 is about 413.3512070979.

The spelling of 70624865 in words is "seventy million, six hundred twenty-four thousand, eight hundred sixty-five".