38977982 has 4 divisors (see below), whose sum is σ = 58466976. Its totient is φ = 19488990.

The previous prime is 38977933. The next prime is 38977997. The reversal of 38977982 is 28977983.

38977982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28977983 = 19 ⋅1525157.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9744494 + ... + 9744497.

It is an arithmetic number, because the mean of its divisors is an integer number (14616744).

Almost surely, 2^38977982 is an apocalyptic number.

38977982 is a deficient number, since it is larger than the sum of its proper divisors (19488994).

38977982 is a wasteful number, since it uses less digits than its factorization.

38977982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19488993.

The product of its digits is 1524096, while the sum is 53.

The square root of 38977982 is about 6243.2348986723. The cubic root of 38977982 is about 339.0573137463.

Subtracting from 38977982 its reverse (28977983), we obtain a palindrome (9999999).

The spelling of 38977982 in words is "thirty-eight million, nine hundred seventy-seven thousand, nine hundred eighty-two".