30977901 has 6 divisors (see below), whose sum is σ = 44745870. Its totient is φ = 20651928.

The previous prime is 30977879. The next prime is 30977911. The reversal of 30977901 is 10977903.

It can be written as a sum of positive squares in only one way, i.e., 21206025 + 9771876 = 4605^2 + 3126^2 .

It is not a de Polignac number, because 30977901 - 2¹⁰ = 30976877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30977911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1720986 + ... + 1721003.

It is an arithmetic number, because the mean of its divisors is an integer number (7457645).

Almost surely, 2^30977901 is an apocalyptic number.

It is an amenable number.

30977901 is a deficient number, since it is larger than the sum of its proper divisors (13767969).

30977901 is a wasteful number, since it uses less digits than its factorization.

30977901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441995 (or 3441992 counting only the distinct ones).

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

The square root of 30977901 is about 5565.7794602374. The cubic root of 30977901 is about 314.0634008588.

It can be divided in two parts, 30977 and 901, that added together give a triangular number (31878 = T₂₅₂).

The spelling of 30977901 in words is "thirty million, nine hundred seventy-seven thousand, nine hundred one".