770983980 has 192 divisors, whose sum is σ = 2410856448. Its totient is φ = 182891520.

The previous prime is 770983973. The next prime is 770983987. The reversal of 770983980 is 89389077.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (770983973) and next prime (770983987).

It is not an unprimeable number, because it can be changed into a prime (770983987) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4259490 + ... + 4259670.

It is an arithmetic number, because the mean of its divisors is an integer number (12556544).

Almost surely, 2^770983980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 770983980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1205428224).

770983980 is an abundant number, since it is smaller than the sum of its proper divisors (1639872468).

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

770983980 is a wasteful number, since it uses less digits than its factorization.

770983980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 770983980 is about 27766.5982792275. The cubic root of 770983980 is about 916.9559044658.

The spelling of 770983980 in words is "seven hundred seventy million, nine hundred eighty-three thousand, nine hundred eighty".