70004015 has 16 divisors (see below), whose sum is σ = 86407776. Its totient is φ = 54412800.

The previous prime is 70004003. The next prime is 70004017. The reversal of 70004015 is 51040007.

It is a happy number.

It is not a de Polignac number, because 70004015 - 2⁶ = 70003951 is a prime.

It is a super-2 number, since 2×70004015² = 9801124232240450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70003984 and 70004002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70004017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63620 + ... + 64710.

It is an arithmetic number, because the mean of its divisors is an integer number (5400486).

Almost surely, 2^70004015 is an apocalyptic number.

70004015 is a deficient number, since it is larger than the sum of its proper divisors (16403761).

70004015 is a wasteful number, since it uses less digits than its factorization.

70004015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 70004015 is about 8366.8402040436. The cubic root of 70004015 is about 412.1364093352.

The spelling of 70004015 in words is "seventy million, four thousand, fifteen".