38977870 has 32 divisors (see below), whose sum is σ = 73804608. Its totient is φ = 14792448.

The previous prime is 38977867. The next prime is 38977877. The reversal of 38977870 is 7877983.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38977877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30892 + ... + 32128.

It is an arithmetic number, because the mean of its divisors is an integer number (2306394).

Almost surely, 2^38977870 is an apocalyptic number.

38977870 is a deficient number, since it is larger than the sum of its proper divisors (34826738).

38977870 is a wasteful number, since it uses less digits than its factorization.

38977870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404.

The product of its (nonzero) digits is 592704, while the sum is 49.

The square root of 38977870 is about 6243.2259289569. The cubic root of 38977870 is about 339.0569889949.

The spelling of 38977870 in words is "thirty-eight million, nine hundred seventy-seven thousand, eight hundred seventy".