70038661 has 16 divisors (see below), whose sum is σ = 88178688. Its totient is φ = 54039600.

The previous prime is 70038659. The next prime is 70038667. The reversal of 70038661 is 16683007.

It is a cyclic number.

It is not a de Polignac number, because 70038661 - 2¹ = 70038659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70038667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3516 + ... + 12346.

It is an arithmetic number, because the mean of its divisors is an integer number (5511168).

Almost surely, 2^70038661 is an apocalyptic number.

It is an amenable number.

70038661 is a deficient number, since it is larger than the sum of its proper divisors (18140027).

70038661 is a wasteful number, since it uses less digits than its factorization.

70038661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8952.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 70038661 is about 8368.9103830786. The cubic root of 70038661 is about 412.2043888793.

The spelling of 70038661 in words is "seventy million, thirty-eight thousand, six hundred sixty-one".