30607397 has 4 divisors (see below), whose sum is σ = 30636396. Its totient is φ = 30578400.

The previous prime is 30607393. The next prime is 30607403. The reversal of 30607397 is 79370603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19088161 + 11519236 = 4369^2 + 3394^2 .

It is a cyclic number.

It is not a de Polignac number, because 30607397 - 2² = 30607393 is a prime.

It is a super-2 number, since 2×30607397² = 1873625502231218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30607391) 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, 12854 + ... + 15047.

It is an arithmetic number, because the mean of its divisors is an integer number (7659099).

Almost surely, 2^30607397 is an apocalyptic number.

It is an amenable number.

30607397 is a deficient number, since it is larger than the sum of its proper divisors (28999).

30607397 is a wasteful number, since it uses less digits than its factorization.

30607397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28998.

The product of its (nonzero) digits is 23814, while the sum is 35.

The square root of 30607397 is about 5532.3952317238. The cubic root of 30607397 is about 312.8062814752.

The spelling of 30607397 in words is "thirty million, six hundred seven thousand, three hundred ninety-seven".