913107994 has 4 divisors (see below), whose sum is σ = 1369661994. Its totient is φ = 456553996.

The previous prime is 913107989. The next prime is 913107997. The reversal of 913107994 is 499701319.

It is a happy number.

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., 634384969 + 278723025 = 25187^2 + 16695^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 913107994.

It is not an unprimeable number, because it can be changed into a prime (913107997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228276997 + ... + 228277000.

Almost surely, 2^913107994 is an apocalyptic number.

913107994 is a deficient number, since it is larger than the sum of its proper divisors (456554000).

913107994 is a wasteful number, since it uses less digits than its factorization.

913107994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456553999.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 913107994 is about 30217.6768465082. The cubic root of 913107994 is about 970.1540811670.

The spelling of 913107994 in words is "nine hundred thirteen million, one hundred seven thousand, nine hundred ninety-four".