30761898 has 8 divisors (see below), whose sum is σ = 61523808. Its totient is φ = 10253964.

The previous prime is 30761867. The next prime is 30761909. The reversal of 30761898 is 89816703.

It is a sphenic number, since it is the product of 3 distinct primes.

30761898 is an admirable number.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2563486 + ... + 2563497.

It is an arithmetic number, because the mean of its divisors is an integer number (7690476).

Almost surely, 2^30761898 is an apocalyptic number.

30761898 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30761898 is a wasteful number, since it uses less digits than its factorization.

30761898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5126988.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 30761898 is about 5546.3409559817. The cubic root of 30761898 is about 313.3317295326.

The spelling of 30761898 in words is "thirty million, seven hundred sixty-one thousand, eight hundred ninety-eight".