377671687 has 4 divisors (see below), whose sum is σ = 380172976. Its totient is φ = 375170400.

The previous prime is 377671681. The next prime is 377671699. The reversal of 377671687 is 786176773.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 786176773 = 12973 ⋅60601.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-377671687 is a prime.

It is a super-2 number, since 2×377671687² = 285271806322851938, which 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 (377671681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250418 + ... + 1250719.

It is an arithmetic number, because the mean of its divisors is an integer number (95043244).

Almost surely, 2^377671687 is an apocalyptic number.

377671687 is a deficient number, since it is larger than the sum of its proper divisors (2501289).

377671687 is a wasteful number, since it uses less digits than its factorization.

377671687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501288.

The product of its digits is 2074464, while the sum is 52.

The square root of 377671687 is about 19433.7769617746. The cubic root of 377671687 is about 722.8332850098.

The spelling of 377671687 in words is "three hundred seventy-seven million, six hundred seventy-one thousand, six hundred eighty-seven".