30649963 has 8 divisors (see below), whose sum is σ = 32789232. Its totient is φ = 28548096.

The previous prime is 30649951. The next prime is 30649967. The reversal of 30649963 is 36994603.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30649963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30649967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7645 + ... + 10942.

It is an arithmetic number, because the mean of its divisors is an integer number (4098654).

Almost surely, 2^30649963 is an apocalyptic number.

30649963 is a deficient number, since it is larger than the sum of its proper divisors (2139269).

30649963 is a wasteful number, since it uses less digits than its factorization.

30649963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18701.

The product of its (nonzero) digits is 104976, while the sum is 40.

The square root of 30649963 is about 5536.2408726500. The cubic root of 30649963 is about 312.9512218693.

The spelling of 30649963 in words is "thirty million, six hundred forty-nine thousand, nine hundred sixty-three".