30897795 has 16 divisors (see below), whose sum is σ = 49601952. Its totient is φ = 16423680.

The previous prime is 30897751. The next prime is 30897799. The reversal of 30897795 is 59779803.

It is not a de Polignac number, because 30897795 - 2¹² = 30893699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30897799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1405 + ... + 7985.

It is an arithmetic number, because the mean of its divisors is an integer number (3100122).

Almost surely, 2^30897795 is an apocalyptic number.

30897795 is a deficient number, since it is larger than the sum of its proper divisors (18704157).

30897795 is a wasteful number, since it uses less digits than its factorization.

30897795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6902.

The product of its (nonzero) digits is 476280, while the sum is 48.

The square root of 30897795 is about 5558.5785053375. The cubic root of 30897795 is about 313.7924541632.

The spelling of 30897795 in words is "thirty million, eight hundred ninety-seven thousand, seven hundred ninety-five".