30247497 has 24 divisors (see below), whose sum is σ = 50179584. Its totient is φ = 17198784.

The previous prime is 30247457. The next prime is 30247499. The reversal of 30247497 is 79474203.

It is not a de Polignac number, because 30247497 - 2⁶ = 30247433 is a prime.

It is a super-2 number, since 2×30247497² = 1829822149530018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30247499) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12973 + ... + 15125.

It is an arithmetic number, because the mean of its divisors is an integer number (2090816).

Almost surely, 2^30247497 is an apocalyptic number.

It is an amenable number.

30247497 is a deficient number, since it is larger than the sum of its proper divisors (19932087).

30247497 is a wasteful number, since it uses less digits than its factorization.

30247497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2389 (or 2386 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 30247497 is about 5499.7724498383. The cubic root of 30247497 is about 311.5753901003.

The spelling of 30247497 in words is "thirty million, two hundred forty-seven thousand, four hundred ninety-seven".