70945658 has 64 divisors (see below), whose sum is σ = 140486400. Its totient is φ = 26127360.

The previous prime is 70945649. The next prime is 70945681. The reversal of 70945658 is 85654907.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130868 + ... + 131408.

It is an arithmetic number, because the mean of its divisors is an integer number (2195100).

Almost surely, 2^70945658 is an apocalyptic number.

70945658 is a deficient number, since it is larger than the sum of its proper divisors (69540742).

70945658 is a wasteful number, since it uses less digits than its factorization.

70945658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 70945658 is about 8422.9245514845. The cubic root of 70945658 is about 413.9761046365.

The spelling of 70945658 in words is "seventy million, nine hundred forty-five thousand, six hundred fifty-eight".