373897663 has 4 divisors (see below), whose sum is σ = 375502608. Its totient is φ = 372292720.

The previous prime is 373897649. The next prime is 373897679. The reversal of 373897663 is 366798373.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366798373 = 1747 ⋅209959.

It is a cyclic number.

It is not a de Polignac number, because 373897663 - 2⁵ = 373897631 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 373897663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (373897063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802123 + ... + 802588.

It is an arithmetic number, because the mean of its divisors is an integer number (93875652).

Almost surely, 2^373897663 is an apocalyptic number.

373897663 is a deficient number, since it is larger than the sum of its proper divisors (1604945).

373897663 is a wasteful number, since it uses less digits than its factorization.

373897663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604944.

The product of its digits is 3429216, while the sum is 52.

The square root of 373897663 is about 19336.4335646468. The cubic root of 373897663 is about 720.4174938508.

The spelling of 373897663 in words is "three hundred seventy-three million, eight hundred ninety-seven thousand, six hundred sixty-three".