38977669 has 2 divisors, whose sum is σ = 38977670. Its totient is φ = 38977668.

The previous prime is 38977661. The next prime is 38977699. The reversal of 38977669 is 96677983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38912644 + 65025 = 6238^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 38977669 - 2³ = 38977661 is a prime.

It is a super-2 number, since 2×38977669² = 3038517361347122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38977661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19488834 + 19488835.

It is an arithmetic number, because the mean of its divisors is an integer number (19488835).

Almost surely, 2^38977669 is an apocalyptic number.

It is an amenable number.

38977669 is a deficient number, since it is larger than the sum of its proper divisors (1).

38977669 is an equidigital number, since it uses as much as digits as its factorization.

38977669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3429216, while the sum is 55.

The square root of 38977669 is about 6243.2098314889. The cubic root of 38977669 is about 339.0564061807.

The spelling of 38977669 in words is "thirty-eight million, nine hundred seventy-seven thousand, six hundred sixty-nine".