30882397 has 12 divisors (see below), whose sum is σ = 38688636. Its totient is φ = 24433920.

The previous prime is 30882367. The next prime is 30882407. The reversal of 30882397 is 79328803.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20196036 + 10686361 = 4494^2 + 3269^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30882397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30882367) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23604 + ... + 24877.

It is an arithmetic number, because the mean of its divisors is an integer number (3224053).

Almost surely, 2^30882397 is an apocalyptic number.

It is an amenable number.

30882397 is a deficient number, since it is larger than the sum of its proper divisors (7806239).

30882397 is a wasteful number, since it uses less digits than its factorization.

30882397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48508 (or 48501 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 30882397 is about 5557.1932663891. The cubic root of 30882397 is about 313.7403190613.

The spelling of 30882397 in words is "thirty million, eight hundred eighty-two thousand, three hundred ninety-seven".