770660670 has 32 divisors (see below), whose sum is σ = 1991862432. Its totient is φ = 189700992.

The previous prime is 770660623. The next prime is 770660689. The reversal of 770660670 is 76066077.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 987637 + ... + 988416.

It is an arithmetic number, because the mean of its divisors is an integer number (62245701).

Almost surely, 2^770660670 is an apocalyptic number.

770660670 is an abundant number, since it is smaller than the sum of its proper divisors (1221201762).

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

770660670 is a wasteful number, since it uses less digits than its factorization.

770660670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976076.

The product of its (nonzero) digits is 74088, while the sum is 39.

The square root of 770660670 is about 27760.7757456451. The cubic root of 770660670 is about 916.8277122375.

The spelling of 770660670 in words is "seven hundred seventy million, six hundred sixty thousand, six hundred seventy".