61023769 has 2 divisors, whose sum is σ = 61023770. Its totient is φ = 61023768.

The previous prime is 61023757. The next prime is 61023793. The reversal of 61023769 is 96732016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47444544 + 13579225 = 6888^2 + 3685^2 .

It is a cyclic number.

It is not a de Polignac number, because 61023769 - 2⁹ = 61023257 is a prime.

It is a super-2 number, since 2×61023769² = 7447800765930722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61023709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30511884 + 30511885.

It is an arithmetic number, because the mean of its divisors is an integer number (30511885).

Almost surely, 2^61023769 is an apocalyptic number.

It is an amenable number.

61023769 is a deficient number, since it is larger than the sum of its proper divisors (1).

61023769 is an equidigital number, since it uses as much as digits as its factorization.

61023769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 61023769 is about 7811.7711820048. The cubic root of 61023769 is about 393.7008409612.

The spelling of 61023769 in words is "sixty-one million, twenty-three thousand, seven hundred sixty-nine".