1370877887 has 8 divisors (see below), whose sum is σ = 1378925856. Its totient is φ = 1362841312.

The previous prime is 1370877863. The next prime is 1370877899. The reversal of 1370877887 is 7887780731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1370877887 - 2²² = 1366683583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1370873887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386918 + ... + 390444.

It is an arithmetic number, because the mean of its divisors is an integer number (172365732).

Almost surely, 2^1370877887 is an apocalyptic number.

1370877887 is a deficient number, since it is larger than the sum of its proper divisors (8047969).

1370877887 is a wasteful number, since it uses less digits than its factorization.

1370877887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5697.

The product of its (nonzero) digits is 3687936, while the sum is 56.

The square root of 1370877887 is about 37025.3681548206. The cubic root of 1370877887 is about 1110.8777212104.

The spelling of 1370877887 in words is "one billion, three hundred seventy million, eight hundred seventy-seven thousand, eight hundred eighty-seven".