694377984 has 80 divisors (see below), whose sum is σ = 1861630848. Its totient is φ = 229988352.

The previous prime is 694377977. The next prime is 694377989. The reversal of 694377984 is 489773496.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (694377989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255159 + ... + 257865.

Almost surely, 2^694377984 is an apocalyptic number.

694377984 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 694377984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (930815424).

694377984 is an abundant number, since it is smaller than the sum of its proper divisors (1167252864).

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

694377984 is a wasteful number, since it uses less digits than its factorization.

694377984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895 (or 2879 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 57.

The square root of 694377984 is about 26351.0528062922. The cubic root of 694377984 is about 885.5205568466.

It can be divided in two parts, 69437 and 7984, that added together give a triangular number (77421 = T₃₉₃).

The spelling of 694377984 in words is "six hundred ninety-four million, three hundred seventy-seven thousand, nine hundred eighty-four".