913307938 has 4 divisors (see below), whose sum is σ = 1369961910. Its totient is φ = 456653968.

The previous prime is 913307929. The next prime is 913307939. The reversal of 913307938 is 839703319.

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

It can be written as a sum of positive squares in only one way, i.e., 819276129 + 94031809 = 28623^2 + 9697^2 .

It is a super-2 number, since 2×913307938² = 1668262779227623688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 913307894 and 913307903.

It is not an unprimeable number, because it can be changed into a prime (913307939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228326983 + ... + 228326986.

Almost surely, 2^913307938 is an apocalyptic number.

913307938 is a deficient number, since it is larger than the sum of its proper divisors (456653972).

913307938 is a wasteful number, since it uses less digits than its factorization.

913307938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456653971.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 913307938 is about 30220.9850600539. The cubic root of 913307938 is about 970.2248878084.

The spelling of 913307938 in words is "nine hundred thirteen million, three hundred seven thousand, nine hundred thirty-eight".