693640376 has 64 divisors (see below), whose sum is σ = 1577318400. Its totient is φ = 281635200.

The previous prime is 693640361. The next prime is 693640397. The reversal of 693640376 is 673046396.

It is a super-2 number, since 2×693640376² = 962273942434842752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25685 + ... + 45243.

It is an arithmetic number, because the mean of its divisors is an integer number (24645600).

Almost surely, 2^693640376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 693640376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (788659200).

693640376 is an abundant number, since it is smaller than the sum of its proper divisors (883678024).

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

693640376 is a wasteful number, since it uses less digits than its factorization.

693640376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19620 (or 19616 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 44.

The square root of 693640376 is about 26337.0532899943. The cubic root of 693640376 is about 885.2068955672.

The spelling of 693640376 in words is "six hundred ninety-three million, six hundred forty thousand, three hundred seventy-six".