76378903 has 4 divisors (see below), whose sum is σ = 76698720. Its totient is φ = 76059088.

The previous prime is 76378877. The next prime is 76378919. The reversal of 76378903 is 30987367.

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 76378903 - 2²¹ = 74281751 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 76378903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76378933) 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, 159550 + ... + 160027.

It is an arithmetic number, because the mean of its divisors is an integer number (19174680).

Almost surely, 2^76378903 is an apocalyptic number.

76378903 is a deficient number, since it is larger than the sum of its proper divisors (319817).

76378903 is a wasteful number, since it uses less digits than its factorization.

76378903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319816.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 76378903 is about 8739.5024457918. The cubic root of 76378903 is about 424.2851243926.

The spelling of 76378903 in words is "seventy-six million, three hundred seventy-eight thousand, nine hundred three".