351872887 has 4 divisors (see below), whose sum is σ = 354234600. Its totient is φ = 349511176.

The previous prime is 351872881. The next prime is 351872897. The reversal of 351872887 is 788278153.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 351872887 - 2²³ = 343484279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 351872887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351872881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1180633 + ... + 1180930.

It is an arithmetic number, because the mean of its divisors is an integer number (88558650).

Almost surely, 2^351872887 is an apocalyptic number.

351872887 is a deficient number, since it is larger than the sum of its proper divisors (2361713).

351872887 is a wasteful number, since it uses less digits than its factorization.

351872887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361712.

The product of its digits is 752640, while the sum is 49.

The square root of 351872887 is about 18758.2751605791. The cubic root of 351872887 is about 705.9846657023.

The spelling of 351872887 in words is "three hundred fifty-one million, eight hundred seventy-two thousand, eight hundred eighty-seven".