30844953 has 18 divisors (see below), whose sum is σ = 47279934. Its totient is φ = 19310592.

The previous prime is 30844943. The next prime is 30844973. The reversal of 30844953 is 35944803.

It can be written as a sum of positive squares in 3 ways, for example, as 11370384 + 19474569 = 3372^2 + 4413^2 .

It is not a de Polignac number, because 30844953 - 2¹³ = 30836761 is a prime.

It is a super-2 number, since 2×30844953² = 1902822251144418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30844943) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 68473 + ... + 68921.

It is an arithmetic number, because the mean of its divisors is an integer number (2626663).

Almost surely, 2^30844953 is an apocalyptic number.

It is an amenable number.

30844953 is a deficient number, since it is larger than the sum of its proper divisors (16434981).

30844953 is an equidigital number, since it uses as much as digits as its factorization.

30844953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 30844953 is about 5553.8232777070. The cubic root of 30844953 is about 313.6134674699.

The spelling of 30844953 in words is "thirty million, eight hundred forty-four thousand, nine hundred fifty-three".