977030091 has 12 divisors (see below), whose sum is σ = 1412375640. Its totient is φ = 650841120.

The previous prime is 977030053. The next prime is 977030149. The reversal of 977030091 is 190030779.

It is not a de Polignac number, because 977030091 - 2¹¹ = 977028043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (977030011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30426 + ... + 53663.

It is an arithmetic number, because the mean of its divisors is an integer number (117697970).

Almost surely, 2^977030091 is an apocalyptic number.

977030091 is a deficient number, since it is larger than the sum of its proper divisors (435345549).

977030091 is a wasteful number, since it uses less digits than its factorization.

977030091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85386 (or 85383 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 36.

The square root of 977030091 is about 31257.4805606594. The cubic root of 977030091 is about 992.2839798289.

The spelling of 977030091 in words is "nine hundred seventy-seven million, thirty thousand, ninety-one".