944994887 has 4 divisors (see below), whose sum is σ = 994731480. Its totient is φ = 895258296.

The previous prime is 944994881. The next prime is 944994893. The reversal of 944994887 is 788499449.

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

It is an interprime number because it is at equal distance from previous prime (944994881) and next prime (944994893).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-944994887 is a prime.

It is a super-2 number, since 2×944994887² = 1786030672912285538, 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 (944994881) 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, 24868268 + ... + 24868305.

It is an arithmetic number, because the mean of its divisors is an integer number (248682870).

Almost surely, 2^944994887 is an apocalyptic number.

944994887 is a deficient number, since it is larger than the sum of its proper divisors (49736593).

944994887 is a wasteful number, since it uses less digits than its factorization.

944994887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49736592.

The product of its digits is 20901888, while the sum is 62.

The square root of 944994887 is about 30740.7691348151. The cubic root of 944994887 is about 981.3181232161.

The spelling of 944994887 in words is "nine hundred forty-four million, nine hundred ninety-four thousand, eight hundred eighty-seven".