1047993877 has 16 divisors (see below), whose sum is σ = 1213228800. Its totient is φ = 886694400.

The previous prime is 1047993853. The next prime is 1047993901. The reversal of 1047993877 is 7783997401.

It is an interprime number because it is at equal distance from previous prime (1047993853) and next prime (1047993901).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1047993877 is a prime.

It is a super-2 number, since 2×1047993877² = 2196582332458982258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047993277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251749 + ... + 255877.

It is an arithmetic number, because the mean of its divisors is an integer number (75826800).

Almost surely, 2^1047993877 is an apocalyptic number.

It is an amenable number.

1047993877 is a deficient number, since it is larger than the sum of its proper divisors (165234923).

1047993877 is a wasteful number, since it uses less digits than its factorization.

1047993877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4596.

The product of its (nonzero) digits is 2667168, while the sum is 55.

The square root of 1047993877 is about 32372.7335422883. The cubic root of 1047993877 is about 1015.7486374290.

The spelling of 1047993877 in words is "one billion, forty-seven million, nine hundred ninety-three thousand, eight hundred seventy-seven".