399101277 has 16 divisors (see below), whose sum is σ = 565367040. Its totient is φ = 249947712.

The previous prime is 399101249. The next prime is 399101341. The reversal of 399101277 is 772101993.

It is not a de Polignac number, because 399101277 - 2¹⁰ = 399100253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399101237) 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, 58773 + ... + 65210.

It is an arithmetic number, because the mean of its divisors is an integer number (35335440).

Almost surely, 2^399101277 is an apocalyptic number.

399101277 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

399101277 is a deficient number, since it is larger than the sum of its proper divisors (166265763).

399101277 is a wasteful number, since it uses less digits than its factorization.

399101277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124052.

The product of its (nonzero) digits is 23814, while the sum is 39.

The square root of 399101277 is about 19977.5192904424. The cubic root of 399101277 is about 736.2540652931.

The spelling of 399101277 in words is "three hundred ninety-nine million, one hundred one thousand, two hundred seventy-seven".