30797725 has 36 divisors (see below), whose sum is σ = 45913728. Its totient is φ = 20412000.

The previous prime is 30797719. The next prime is 30797729. The reversal of 30797725 is 52779703.

It is not a de Polignac number, because 30797725 - 2⁹ = 30797213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30797729) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 37570 + ... + 38380.

Almost surely, 2^30797725 is an apocalyptic number.

30797725 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30797725 is a deficient number, since it is larger than the sum of its proper divisors (15116003).

30797725 is a wasteful number, since it uses less digits than its factorization.

30797725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 92610, while the sum is 40.

The square root of 30797725 is about 5549.5698031469. The cubic root of 30797725 is about 313.4533234673.

The spelling of 30797725 in words is "thirty million, seven hundred ninety-seven thousand, seven hundred twenty-five".