3697463640 has 128 divisors (see below), whose sum is σ = 12237220800. Its totient is φ = 887930880.

The previous prime is 3697463639. The next prime is 3697463657. The reversal of 3697463640 is 463647963.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 3697463640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35056 + ... + 92864.

Almost surely, 2^3697463640 is an apocalyptic number.

3697463640 is a gapful number since it is divisible by the number (30) 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 3697463640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6118610400).

3697463640 is an abundant number, since it is smaller than the sum of its proper divisors (8539757160).

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

3697463640 is a wasteful number, since it uses less digits than its factorization.

3697463640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57877 (or 57873 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 48.

The square root of 3697463640 is about 60806.7729780162. The cubic root of 3697463640 is about 1546.3268751262.

The spelling of 3697463640 in words is "three billion, six hundred ninety-seven million, four hundred sixty-three thousand, six hundred forty".