913918 has 4 divisors (see below), whose sum is σ = 1370880. Its totient is φ = 456958.

The previous prime is 913907. The next prime is 913921. The reversal of 913918 is 819319.

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

It is a super-2 number, since 2×913918² = 1670492221448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 913918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228478 + ... + 228481.

It is an arithmetic number, because the mean of its divisors is an integer number (342720).

2⁹¹³⁹¹⁸ is an apocalyptic number.

913918 is a deficient number, since it is larger than the sum of its proper divisors (456962).

913918 is a wasteful number, since it uses less digits than its factorization.

913918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456961.

The product of its digits is 1944, while the sum is 31.

The square root of 913918 is about 955.9905857277. The cubic root of 913918 is about 97.0440866658.

The spelling of 913918 in words is "nine hundred thirteen thousand, nine hundred eighteen".