30887061 has 16 divisors (see below), whose sum is σ = 41793024. Its totient is φ = 20289024.

The previous prime is 30887053. The next prime is 30887069. The reversal of 30887061 is 16078803.

It is an interprime number because it is at equal distance from previous prime (30887053) and next prime (30887069).

It is not a de Polignac number, because 30887061 - 2³ = 30887053 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30887069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91485 + ... + 91821.

It is an arithmetic number, because the mean of its divisors is an integer number (2612064).

Almost surely, 2^30887061 is an apocalyptic number.

It is an amenable number.

30887061 is a deficient number, since it is larger than the sum of its proper divisors (10905963).

30887061 is a wasteful number, since it uses less digits than its factorization.

30887061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 30887061 is about 5557.6128868427. The cubic root of 30887061 is about 313.7561124294.

The spelling of 30887061 in words is "thirty million, eight hundred eighty-seven thousand, sixty-one".