1399090977 has 12 divisors (see below), whose sum is σ = 2086100224. Its totient is φ = 902639160.

The previous prime is 1399090969. The next prime is 1399091003. The reversal of 1399090977 is 7790909931.

It is not a de Polignac number, because 1399090977 - 2³ = 1399090969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1399090967) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2507053 + ... + 2507610.

Almost surely, 2^1399090977 is an apocalyptic number.

It is an amenable number.

1399090977 is a deficient number, since it is larger than the sum of its proper divisors (687009247).

1399090977 is a wasteful number, since it uses less digits than its factorization.

1399090977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5014700 (or 5014697 counting only the distinct ones).

The product of its (nonzero) digits is 964467, while the sum is 54.

The square root of 1399090977 is about 37404.4245644817. The cubic root of 1399090977 is about 1118.4467672832.

The spelling of 1399090977 in words is "one billion, three hundred ninety-nine million, ninety thousand, nine hundred seventy-seven".