76278361 has 4 divisors (see below), whose sum is σ = 77416912. Its totient is φ = 75139812.

The previous prime is 76278347. The next prime is 76278403. The reversal of 76278361 is 16387267.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76278361 - 2⁷ = 76278233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76278161) 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, 569175 + ... + 569308.

It is an arithmetic number, because the mean of its divisors is an integer number (19354228).

Almost surely, 2^76278361 is an apocalyptic number.

It is an amenable number.

76278361 is a deficient number, since it is larger than the sum of its proper divisors (1138551).

76278361 is a wasteful number, since it uses less digits than its factorization.

76278361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138550.

The product of its digits is 84672, while the sum is 40.

The square root of 76278361 is about 8733.7483934448. The cubic root of 76278361 is about 424.0988722342.

The spelling of 76278361 in words is "seventy-six million, two hundred seventy-eight thousand, three hundred sixty-one".