676681837 has 4 divisors (see below), whose sum is σ = 728734300. Its totient is φ = 624629376.

The previous prime is 676681823. The next prime is 676681849. The reversal of 676681837 is 738186676.

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 183575401 + 493106436 = 13549^2 + 22206^2 .

It is a cyclic number.

It is not a de Polignac number, because 676681837 - 2¹¹ = 676679789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676681807) 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, 26026212 + ... + 26026237.

It is an arithmetic number, because the mean of its divisors is an integer number (182183575).

Almost surely, 2^676681837 is an apocalyptic number.

It is an amenable number.

676681837 is a deficient number, since it is larger than the sum of its proper divisors (52052463).

676681837 is a wasteful number, since it uses less digits than its factorization.

676681837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52052462.

The product of its digits is 2032128, while the sum is 52.

The square root of 676681837 is about 26013.1089452991. The cubic root of 676681837 is about 877.9332685034.

The spelling of 676681837 in words is "six hundred seventy-six million, six hundred eighty-one thousand, eight hundred thirty-seven".