70431678 has 24 divisors (see below), whose sum is σ = 156152568. Its totient is φ = 22930992.

The previous prime is 70431671. The next prime is 70431679. The reversal of 70431678 is 87613407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70431671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44725 + ... + 46272.

It is an arithmetic number, because the mean of its divisors is an integer number (6506357).

Almost surely, 2^70431678 is an apocalyptic number.

70431678 is an abundant number, since it is smaller than the sum of its proper divisors (85720890).

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

70431678 is a wasteful number, since it uses less digits than its factorization.

70431678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91048 (or 91045 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 70431678 is about 8392.3583097959. The cubic root of 70431678 is about 412.9739697923.

The spelling of 70431678 in words is "seventy million, four hundred thirty-one thousand, six hundred seventy-eight".