30744961 has 8 divisors (see below), whose sum is σ = 33483240. Its totient is φ = 28060032.

The previous prime is 30744953. The next prime is 30744977. The reversal of 30744961 is 16944703.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4928400 + 25816561 = 2220^2 + 5081^2 .

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

It is not a de Polignac number, because 30744961 - 2³ = 30744953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30744911) 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, 12130 + ... + 14443.

It is an arithmetic number, because the mean of its divisors is an integer number (4185405).

Almost surely, 2^30744961 is an apocalyptic number.

It is an amenable number.

30744961 is a deficient number, since it is larger than the sum of its proper divisors (2738279).

30744961 is a wasteful number, since it uses less digits than its factorization.

30744961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26675.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 30744961 is about 5544.8138832606. The cubic root of 30744961 is about 313.2742138599.

The spelling of 30744961 in words is "thirty million, seven hundred forty-four thousand, nine hundred sixty-one".