70766489 has 4 divisors (see below), whose sum is σ = 70930356. Its totient is φ = 70602624.

The previous prime is 70766477. The next prime is 70766503. The reversal of 70766489 is 98466707.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41822089 + 28944400 = 6467^2 + 5380^2 .

It is a cyclic number.

It is not a de Polignac number, because 70766489 - 2⁸ = 70766233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70766389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81284 + ... + 82149.

It is an arithmetic number, because the mean of its divisors is an integer number (17732589).

Almost surely, 2^70766489 is an apocalyptic number.

It is an amenable number.

70766489 is a deficient number, since it is larger than the sum of its proper divisors (163867).

70766489 is a wasteful number, since it uses less digits than its factorization.

70766489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163866.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 70766489 is about 8412.2820328375. The cubic root of 70766489 is about 413.6273202606.

The spelling of 70766489 in words is "seventy million, seven hundred sixty-six thousand, four hundred eighty-nine".