38477985 has 48 divisors (see below), whose sum is σ = 77144256. Its totient is φ = 16232832.

The previous prime is 38477941. The next prime is 38478001. The reversal of 38477985 is 58977483.

It is not a de Polignac number, because 38477985 - 2⁶ = 38477921 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7542 + ... + 11568.

It is an arithmetic number, because the mean of its divisors is an integer number (1607172).

Almost surely, 2^38477985 is an apocalyptic number.

38477985 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38477985 is an abundant number, since it is smaller than the sum of its proper divisors (38666271).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38477985 is a wasteful number, since it uses less digits than its factorization.

38477985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4062 (or 4055 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 51.

The square root of 38477985 is about 6203.0625500635. The cubic root of 38477985 is about 337.6012974399.

The spelling of 38477985 in words is "thirty-eight million, four hundred seventy-seven thousand, nine hundred eighty-five".