30948641 has 4 divisors (see below), whose sum is σ = 31156500. Its totient is φ = 30740784.

The previous prime is 30948637. The next prime is 30948667. The reversal of 30948641 is 14684903.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14684903 = 1129 ⋅13007.

It can be written as a sum of positive squares in 2 ways, for example, as 17472400 + 13476241 = 4180^2 + 3671^2 .

It is a cyclic number.

It is not a de Polignac number, because 30948641 - 2² = 30948637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30948611) 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, 103706 + ... + 104003.

It is an arithmetic number, because the mean of its divisors is an integer number (7789125).

Almost surely, 2^30948641 is an apocalyptic number.

It is an amenable number.

30948641 is a deficient number, since it is larger than the sum of its proper divisors (207859).

30948641 is a wasteful number, since it uses less digits than its factorization.

30948641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207858.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 30948641 is about 5563.1502765969. The cubic root of 30948641 is about 313.9644874439.

The spelling of 30948641 in words is "thirty million, nine hundred forty-eight thousand, six hundred forty-one".