30972794 has 8 divisors (see below), whose sum is σ = 47592468. Its totient is φ = 15108640.

The previous prime is 30972769. The next prime is 30972797. The reversal of 30972794 is 49727903.

It can be written as a sum of positive squares in 2 ways, for example, as 25150225 + 5822569 = 5015^2 + 2413^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (30972797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188777 + ... + 188940.

Almost surely, 2^30972794 is an apocalyptic number.

30972794 is a deficient number, since it is larger than the sum of its proper divisors (16619674).

30972794 is a wasteful number, since it uses less digits than its factorization.

30972794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377760.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 30972794 is about 5565.3206556316. The cubic root of 30972794 is about 314.0461411362.

The spelling of 30972794 in words is "thirty million, nine hundred seventy-two thousand, seven hundred ninety-four".