977398252 has 12 divisors (see below), whose sum is σ = 1769428080. Its totient is φ = 471847376.

The previous prime is 977398249. The next prime is 977398277. The reversal of 977398252 is 252893779.

It is a super-3 number, since 3×977398252³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 977398252.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4212808 + ... + 4213039.

It is an arithmetic number, because the mean of its divisors is an integer number (147452340).

Almost surely, 2^977398252 is an apocalyptic number.

It is an amenable number.

977398252 is a deficient number, since it is larger than the sum of its proper divisors (792029828).

977398252 is a wasteful number, since it uses less digits than its factorization.

977398252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8425880 (or 8425878 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 52.

The square root of 977398252 is about 31263.3691722437. The cubic root of 977398252 is about 992.4086004825.

The spelling of 977398252 in words is "nine hundred seventy-seven million, three hundred ninety-eight thousand, two hundred fifty-two".