78654052 has 24 divisors (see below), whose sum is σ = 141305472. Its totient is φ = 38287200.

The previous prime is 78654049. The next prime is 78654097. The reversal of 78654052 is 25045687.

It is a happy number.

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, 73602 + ... + 74662.

It is an arithmetic number, because the mean of its divisors is an integer number (5887728).

Almost surely, 2^78654052 is an apocalyptic number.

It is an amenable number.

78654052 is a deficient number, since it is larger than the sum of its proper divisors (62651420).

78654052 is a wasteful number, since it uses less digits than its factorization.

78654052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539 (or 1537 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 78654052 is about 8868.7119696154. The cubic root of 78654052 is about 428.4567938692.

The spelling of 78654052 in words is "seventy-eight million, six hundred fifty-four thousand, fifty-two".