397498383877 has 16 divisors (see below), whose sum is σ = 460772064000. Its totient is φ = 335848625280.

The previous prime is 397498383857. The next prime is 397498383923. The reversal of 397498383877 is 778383894793.

It is not a de Polignac number, because 397498383877 - 2¹⁵ = 397498351109 is a prime.

It is a super-2 number, since 2×397498383877² (a number of 24 digits) 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 (397498383857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2563249 + ... + 2713897.

It is an arithmetic number, because the mean of its divisors is an integer number (28798254000).

Almost surely, 2^397498383877 is an apocalyptic number.

It is an amenable number.

397498383877 is a deficient number, since it is larger than the sum of its proper divisors (63273680123).

397498383877 is a wasteful number, since it uses less digits than its factorization.

397498383877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156036.

The product of its digits is 1536288768, while the sum is 76.

The spelling of 397498383877 in words is "three hundred ninety-seven billion, four hundred ninety-eight million, three hundred eighty-three thousand, eight hundred seventy-seven".