76313778 has 16 divisors (see below), whose sum is σ = 152888736. Its totient is φ = 25394400.

The previous prime is 76313749. The next prime is 76313807. The reversal of 76313778 is 87731367.

It is an interprime number because it is at equal distance from previous prime (76313749) and next prime (76313807).

It is a super-3 number, since 3×76313778³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6976 + ... + 14187.

It is an arithmetic number, because the mean of its divisors is an integer number (9555546).

Almost surely, 2^76313778 is an apocalyptic number.

76313778 is an abundant number, since it is smaller than the sum of its proper divisors (76574958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76313778 is a wasteful number, since it uses less digits than its factorization.

76313778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21769.

The product of its digits is 148176, while the sum is 42.

The square root of 76313778 is about 8735.7757526164. The cubic root of 76313778 is about 424.1645002203.

It can be divided in two parts, 763 and 13778, that added together give a palindrome (14541).

The spelling of 76313778 in words is "seventy-six million, three hundred thirteen thousand, seven hundred seventy-eight".