70416639 has 24 divisors (see below), whose sum is σ = 108736992. Its totient is φ = 43802880.

The previous prime is 70416613. The next prime is 70416649. The reversal of 70416639 is 93661407.

70416639 is a `hidden beast` number, since 7 + 0 + 4 + 16 + 639 = 666.

It is not a de Polignac number, because 70416639 - 2⁵ = 70416607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70416649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4339 + ... + 12635.

It is an arithmetic number, because the mean of its divisors is an integer number (4530708).

Almost surely, 2^70416639 is an apocalyptic number.

70416639 is a deficient number, since it is larger than the sum of its proper divisors (38320353).

70416639 is a wasteful number, since it uses less digits than its factorization.

70416639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8367 (or 8364 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 70416639 is about 8391.4622682820. The cubic root of 70416639 is about 412.9445741292.

The spelling of 70416639 in words is "seventy million, four hundred sixteen thousand, six hundred thirty-nine".