70004731 has 8 divisors (see below), whose sum is σ = 71762240. Its totient is φ = 68253192.

The previous prime is 70004719. The next prime is 70004741. The reversal of 70004731 is 13740007.

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

It is a cyclic number.

It is not a de Polignac number, because 70004731 - 2⁵ = 70004699 is a prime.

It is a super-2 number, since 2×70004731² = 9801324724764722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70004741) 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, 30676 + ... + 32878.

It is an arithmetic number, because the mean of its divisors is an integer number (8970280).

Almost surely, 2^70004731 is an apocalyptic number.

70004731 is a deficient number, since it is larger than the sum of its proper divisors (1757509).

70004731 is a wasteful number, since it uses less digits than its factorization.

70004731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 70004731 is about 8366.8829918913. The cubic root of 70004731 is about 412.1378144387.

Adding to 70004731 its reverse (13740007), we get a palindrome (83744738).

The spelling of 70004731 in words is "seventy million, four thousand, seven hundred thirty-one".