607981769 has 2 divisors, whose sum is σ = 607981770. Its totient is φ = 607981768.

The previous prime is 607981763. The next prime is 607981819. The reversal of 607981769 is 967189706.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 606981769 + 1000000 = 24637^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 607981769 - 2⁴ = 607981753 is a prime.

It is a super-2 number, since 2×607981769² = 739283662872738722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 607981769.

It is not a weakly prime, because it can be changed into another prime (607981763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303990884 + 303990885.

It is an arithmetic number, because the mean of its divisors is an integer number (303990885).

Almost surely, 2^607981769 is an apocalyptic number.

It is an amenable number.

607981769 is a deficient number, since it is larger than the sum of its proper divisors (1).

607981769 is an equidigital number, since it uses as much as digits as its factorization.

607981769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The square root of 607981769 is about 24657.2863267635. The cubic root of 607981769 is about 847.1562492993.

The spelling of 607981769 in words is "six hundred seven million, nine hundred eighty-one thousand, seven hundred sixty-nine".