78867548 has 12 divisors (see below), whose sum is σ = 138418392. Its totient is φ = 39319440.

The previous prime is 78867541. The next prime is 78867557. The reversal of 78867548 is 84576887.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 78867548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78867541) 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, 27023 + ... + 29798.

It is an arithmetic number, because the mean of its divisors is an integer number (11534866).

Almost surely, 2^78867548 is an apocalyptic number.

It is an amenable number.

78867548 is a deficient number, since it is larger than the sum of its proper divisors (59550844).

78867548 is a wasteful number, since it uses less digits than its factorization.

78867548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57172 (or 57170 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 53.

The square root of 78867548 is about 8880.7402844583. The cubic root of 78867548 is about 428.8441067048.

The spelling of 78867548 in words is "seventy-eight million, eight hundred sixty-seven thousand, five hundred forty-eight".