38955577 has 2 divisors, whose sum is σ = 38955578. Its totient is φ = 38955576.

The previous prime is 38955569. The next prime is 38955593. The reversal of 38955577 is 77555983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24393721 + 14561856 = 4939^2 + 3816^2 .

It is an emirp because it is prime and its reverse (77555983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38955577 - 2³ = 38955569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38955577.

It is not a weakly prime, because it can be changed into another prime (38955547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19477788 + 19477789.

It is an arithmetic number, because the mean of its divisors is an integer number (19477789).

Almost surely, 2^38955577 is an apocalyptic number.

It is an amenable number.

38955577 is a deficient number, since it is larger than the sum of its proper divisors (1).

38955577 is an equidigital number, since it uses as much as digits as its factorization.

38955577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1323000, while the sum is 49.

The square root of 38955577 is about 6241.4402985208. The cubic root of 38955577 is about 338.9923365914.

The spelling of 38955577 in words is "thirty-eight million, nine hundred fifty-five thousand, five hundred seventy-seven".