8373899377 has 4 divisors (see below), whose sum is σ = 8374982260. Its totient is φ = 8372816496.

The previous prime is 8373899371. The next prime is 8373899381. The reversal of 8373899377 is 7739983738.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6138879201 + 2235020176 = 78351^2 + 47276^2 .

It is a cyclic number.

It is not a de Polignac number, because 8373899377 - 2²⁷ = 8239681649 is a prime.

It is a super-2 number, since 2×8373899377² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8373899371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529758 + ... + 545335.

It is an arithmetic number, because the mean of its divisors is an integer number (2093745565).

Almost surely, 2^8373899377 is an apocalyptic number.

It is an amenable number.

8373899377 is a deficient number, since it is larger than the sum of its proper divisors (1082883).

8373899377 is a wasteful number, since it uses less digits than its factorization.

8373899377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082882.

The product of its digits is 48009024, while the sum is 64.

The square root of 8373899377 is about 91509.0125452133. The cubic root of 8373899377 is about 2030.6850864598.

The spelling of 8373899377 in words is "eight billion, three hundred seventy-three million, eight hundred ninety-nine thousand, three hundred seventy-seven".