78584276 has 12 divisors (see below), whose sum is σ = 138243840. Its totient is φ = 39086040.

The previous prime is 78584273. The next prime is 78584279. The reversal of 78584276 is 67248587.

It is an interprime number because it is at equal distance from previous prime (78584273) and next prime (78584279).

It is a self number, because there is not a number n which added to its sum of digits gives 78584276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78584273) 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, 50666 + ... + 52193.

It is an arithmetic number, because the mean of its divisors is an integer number (11520320).

Almost surely, 2^78584276 is an apocalyptic number.

It is an amenable number.

78584276 is a deficient number, since it is larger than the sum of its proper divisors (59659564).

78584276 is a wasteful number, since it uses less digits than its factorization.

78584276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103054 (or 103052 counting only the distinct ones).

The product of its digits is 752640, while the sum is 47.

The square root of 78584276 is about 8864.7772673655. Note that the first 3 decimals coincide. The cubic root of 78584276 is about 428.3300580968.

The spelling of 78584276 in words is "seventy-eight million, five hundred eighty-four thousand, two hundred seventy-six".