70159638 has 16 divisors (see below), whose sum is σ = 142620336. Its totient is φ = 23003040.

The previous prime is 70159633. The next prime is 70159669. The reversal of 70159638 is 83695107.

It is a junction number, because it is equal to n+sod(n) for n = 70159596 and 70159605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70159633) 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, 95481 + ... + 96212.

It is an arithmetic number, because the mean of its divisors is an integer number (8913771).

Almost surely, 2^70159638 is an apocalyptic number.

70159638 is an abundant number, since it is smaller than the sum of its proper divisors (72460698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70159638 is a wasteful number, since it uses less digits than its factorization.

70159638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191759.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 70159638 is about 8376.1350275649. The cubic root of 70159638 is about 412.4415843818.

It can be divided in two parts, 7015 and 9638, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 70159638 in words is "seventy million, one hundred fifty-nine thousand, six hundred thirty-eight".