677673810 has 96 divisors (see below), whose sum is σ = 1986445440. Its totient is φ = 164276640.

The previous prime is 677673803. The next prime is 677673853. The reversal of 677673810 is 18376776.

It is a happy number.

It is a super-2 number, since 2×677673810² = 918483585519832200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22299 + ... + 43041.

It is an arithmetic number, because the mean of its divisors is an integer number (20692140).

Almost surely, 2^677673810 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 677673810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (993222720).

677673810 is an abundant number, since it is smaller than the sum of its proper divisors (1308771630).

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

677673810 is a wasteful number, since it uses less digits than its factorization.

677673810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20781 (or 20764 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 677673810 is about 26032.1687532945. The cubic root of 677673810 is about 878.3620573581.

The spelling of 677673810 in words is "six hundred seventy-seven million, six hundred seventy-three thousand, eight hundred ten".