3695987157 has 8 divisors (see below), whose sum is σ = 5097913440. Its totient is φ = 2379026160.

The previous prime is 3695987149. The next prime is 3695987173. The reversal of 3695987157 is 7517895963.

3695987157 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3695987157 - 2³ = 3695987149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3695987157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3695987137) 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, 21241219 + ... + 21241392.

It is an arithmetic number, because the mean of its divisors is an integer number (637239180).

Almost surely, 2^3695987157 is an apocalyptic number.

It is an amenable number.

3695987157 is a deficient number, since it is larger than the sum of its proper divisors (1401926283).

3695987157 is a wasteful number, since it uses less digits than its factorization.

3695987157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42482643.

The product of its digits is 14288400, while the sum is 60.

The square root of 3695987157 is about 60794.6309882707. The cubic root of 3695987157 is about 1546.1210196592.

The spelling of 3695987157 in words is "three billion, six hundred ninety-five million, nine hundred eighty-seven thousand, one hundred fifty-seven".