770509090 has 64 divisors (see below), whose sum is σ = 1614896640. Its totient is φ = 262206720.

The previous prime is 770509081. The next prime is 770509099. The reversal of 770509090 is 90905077.

It is an interprime number because it is at equal distance from previous prime (770509081) and next prime (770509099).

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (770509099) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87175 + ... + 95605.

It is an arithmetic number, because the mean of its divisors is an integer number (25232760).

Almost surely, 2^770509090 is an apocalyptic number.

770509090 is an abundant number, since it is smaller than the sum of its proper divisors (844387550).

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

770509090 is a wasteful number, since it uses less digits than its factorization.

770509090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8507.

The product of its (nonzero) digits is 19845, while the sum is 37.

The square root of 770509090 is about 27758.0455003590. The cubic root of 770509090 is about 916.7675985098.

The spelling of 770509090 in words is "seven hundred seventy million, five hundred nine thousand, ninety".