30740887 has 4 divisors (see below), whose sum is σ = 30754080. Its totient is φ = 30727696.

The previous prime is 30740869. The next prime is 30740909. The reversal of 30740887 is 78804703.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30740887 - 2²³ = 22352279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30740807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2062 + ... + 8107.

It is an arithmetic number, because the mean of its divisors is an integer number (7688520).

Almost surely, 2^30740887 is an apocalyptic number.

30740887 is a deficient number, since it is larger than the sum of its proper divisors (13193).

30740887 is a wasteful number, since it uses less digits than its factorization.

30740887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13192.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 30740887 is about 5544.4465007790. The cubic root of 30740887 is about 313.2603759769.

The spelling of 30740887 in words is "thirty million, seven hundred forty thousand, eight hundred eighty-seven".