30766977 has 18 divisors (see below), whose sum is σ = 45332742. Its totient is φ = 20107776.

The previous prime is 30766963. The next prime is 30766979. The reversal of 30766977 is 77966703.

It can be written as a sum of positive squares in 3 ways, for example, as 8071281 + 22695696 = 2841^2 + 4764^2 .

It is not a de Polignac number, because 30766977 - 2¹⁹ = 30242689 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30766979) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24673 + ... + 25889.

Almost surely, 2^30766977 is an apocalyptic number.

It is an amenable number.

30766977 is a deficient number, since it is larger than the sum of its proper divisors (14565765).

30766977 is a wasteful number, since it uses less digits than its factorization.

30766977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329 (or 1273 counting only the distinct ones).

The product of its (nonzero) digits is 333396, while the sum is 45.

The square root of 30766977 is about 5546.7988065189. The cubic root of 30766977 is about 313.3489729883.

The spelling of 30766977 in words is "thirty million, seven hundred sixty-six thousand, nine hundred seventy-seven".