30490597 has 4 divisors (see below), whose sum is σ = 30617356. Its totient is φ = 30363840.

The previous prime is 30490591. The next prime is 30490637. The reversal of 30490597 is 79509403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79509403 = 59 ⋅1347617.

It can be written as a sum of positive squares in 2 ways, for example, as 7918596 + 22572001 = 2814^2 + 4751^2 .

It is a cyclic number.

It is not a de Polignac number, because 30490597 - 2³ = 30490589 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30490591) 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, 63018 + ... + 63499.

It is an arithmetic number, because the mean of its divisors is an integer number (7654339).

Almost surely, 2^30490597 is an apocalyptic number.

It is an amenable number.

30490597 is a deficient number, since it is larger than the sum of its proper divisors (126759).

30490597 is a wasteful number, since it uses less digits than its factorization.

30490597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126758.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 30490597 is about 5521.8291353500. The cubic root of 30490597 is about 312.4078772722.

The spelling of 30490597 in words is "thirty million, four hundred ninety thousand, five hundred ninety-seven".