77250814 has 4 divisors (see below), whose sum is σ = 115876224. Its totient is φ = 38625406.

The previous prime is 77250773. The next prime is 77250841. The reversal of 77250814 is 41805277.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 77250814.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19312702 + ... + 19312705.

It is an arithmetic number, because the mean of its divisors is an integer number (28969056).

Almost surely, 2^77250814 is an apocalyptic number.

77250814 is a deficient number, since it is larger than the sum of its proper divisors (38625410).

77250814 is a wasteful number, since it uses less digits than its factorization.

77250814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38625409.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 77250814 is about 8789.2442223436. The cubic root of 77250814 is about 425.8935093499.

The spelling of 77250814 in words is "seventy-seven million, two hundred fifty thousand, eight hundred fourteen".