70004638 has 8 divisors (see below), whose sum is σ = 114553080. Its totient is φ = 31820280.

The previous prime is 70004633. The next prime is 70004647. The reversal of 70004638 is 83640007.

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

It is a super-2 number, since 2×70004638² = 9801298683022088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70004633) 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, 1590993 + ... + 1591036.

It is an arithmetic number, because the mean of its divisors is an integer number (14319135).

Almost surely, 2^70004638 is an apocalyptic number.

70004638 is a deficient number, since it is larger than the sum of its proper divisors (44548442).

70004638 is a wasteful number, since it uses less digits than its factorization.

70004638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3182042.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 70004638 is about 8366.8774342642. The cubic root of 70004638 is about 412.1376319328.

The spelling of 70004638 in words is "seventy million, four thousand, six hundred thirty-eight".