38877725 has 18 divisors (see below), whose sum is σ = 51220494. Its totient is φ = 29267200.

The previous prime is 38877703. The next prime is 38877737. The reversal of 38877725 is 52777883.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 4044121 + 34833604 = 2011^2 + 5902^2 .

It is not a de Polignac number, because 38877725 - 2⁸ = 38877469 is a prime.

It is a super-2 number, since 2×38877725² = 3022955002351250, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38877725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4535 + ... + 9915.

It is an arithmetic number, because the mean of its divisors is an integer number (2845583).

Almost surely, 2^38877725 is an apocalyptic number.

It is an amenable number.

38877725 is a deficient number, since it is larger than the sum of its proper divisors (12342769).

38877725 is a wasteful number, since it uses less digits than its factorization.

38877725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5425 (or 5403 counting only the distinct ones).

The product of its digits is 658560, while the sum is 47.

The square root of 38877725 is about 6235.2004779317. The cubic root of 38877725 is about 338.7663626851.

The spelling of 38877725 in words is "thirty-eight million, eight hundred seventy-seven thousand, seven hundred twenty-five".