76378487 has 4 divisors (see below), whose sum is σ = 76534536. Its totient is φ = 76222440.

The previous prime is 76378483. The next prime is 76378493. The reversal of 76378487 is 78487367.

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 76378487 - 2² = 76378483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76378481) 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, 77288 + ... + 78269.

It is an arithmetic number, because the mean of its divisors is an integer number (19133634).

Almost surely, 2^76378487 is an apocalyptic number.

76378487 is a deficient number, since it is larger than the sum of its proper divisors (156049).

76378487 is a wasteful number, since it uses less digits than its factorization.

76378487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156048.

The product of its digits is 1580544, while the sum is 50.

The square root of 76378487 is about 8739.4786457774. The cubic root of 76378487 is about 424.2843540973.

The spelling of 76378487 in words is "seventy-six million, three hundred seventy-eight thousand, four hundred eighty-seven".