694648980 has 48 divisors (see below), whose sum is σ = 2161131840. Its totient is φ = 185239584.

The previous prime is 694648973. The next prime is 694649003. The reversal of 694648980 is 89846496.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642654 + ... + 643733.

It is an arithmetic number, because the mean of its divisors is an integer number (45023580).

Almost surely, 2^694648980 is an apocalyptic number.

694648980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

694648980 is an abundant number, since it is smaller than the sum of its proper divisors (1466482860).

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

694648980 is a wasteful number, since it uses less digits than its factorization.

694648980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286405 (or 1286397 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The square root of 694648980 is about 26356.1943383334. The cubic root of 694648980 is about 885.6357397023.

The spelling of 694648980 in words is "six hundred ninety-four million, six hundred forty-eight thousand, nine hundred eighty".