672687377 has 4 divisors (see below), whose sum is σ = 677984256. Its totient is φ = 667390500.

The previous prime is 672687349. The next prime is 672687397. The reversal of 672687377 is 773786276.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 672687377 - 2¹⁴ = 672670993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672687347) 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, 2648249 + ... + 2648502.

It is an arithmetic number, because the mean of its divisors is an integer number (169496064).

Almost surely, 2^672687377 is an apocalyptic number.

It is an amenable number.

672687377 is a deficient number, since it is larger than the sum of its proper divisors (5296879).

672687377 is a wasteful number, since it uses less digits than its factorization.

672687377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5296878.

The product of its digits is 4148928, while the sum is 53.

The square root of 672687377 is about 25936.2174767255. The cubic root of 672687377 is about 876.2023750896.

The spelling of 672687377 in words is "six hundred seventy-two million, six hundred eighty-seven thousand, three hundred seventy-seven".