677074640 has 80 divisors (see below), whose sum is σ = 1818365760. Its totient is φ = 231720960.

The previous prime is 677074631. The next prime is 677074649. The reversal of 677074640 is 46470776.

It is an interprime number because it is at equal distance from previous prime (677074631) and next prime (677074649).

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×677074640² = 916860136262259200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677074649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7670 + ... + 37589.

It is an arithmetic number, because the mean of its divisors is an integer number (22729572).

Almost surely, 2^677074640 is an apocalyptic number.

It is an amenable number.

677074640 is an abundant number, since it is smaller than the sum of its proper divisors (1141291120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

677074640 is a wasteful number, since it uses less digits than its factorization.

677074640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45300 (or 45294 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 41.

The square root of 677074640 is about 26020.6579471004. The cubic root of 677074640 is about 878.1031110580.

It can be divided in two parts, 67 and 7074640, that added together give a palindrome (7074707).

The spelling of 677074640 in words is "six hundred seventy-seven million, seventy-four thousand, six hundred forty".