977542834 has 8 divisors (see below), whose sum is σ = 1472718060. Its totient is φ = 486636816.

The previous prime is 977542831. The next prime is 977542861. The reversal of 977542834 is 438245779.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 973752025 + 3790809 = 31205^2 + 1947^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (977542831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066729 + ... + 1067644.

Almost surely, 2^977542834 is an apocalyptic number.

977542834 is a deficient number, since it is larger than the sum of its proper divisors (495175226).

977542834 is a wasteful number, since it uses less digits than its factorization.

977542834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134604.

The product of its digits is 1693440, while the sum is 49.

The square root of 977542834 is about 31265.6814094943. The cubic root of 977542834 is about 992.4575322070.

The spelling of 977542834 in words is "nine hundred seventy-seven million, five hundred forty-two thousand, eight hundred thirty-four".