78738363 has 12 divisors (see below), whose sum is σ = 124072728. Its totient is φ = 47720160.

The previous prime is 78738353. The next prime is 78738371. The reversal of 78738363 is 36383787.

It is not a de Polignac number, because 78738363 - 2¹⁰ = 78737339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78738313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 397570 + ... + 397767.

It is an arithmetic number, because the mean of its divisors is an integer number (10339394).

Almost surely, 2^78738363 is an apocalyptic number.

78738363 is a deficient number, since it is larger than the sum of its proper divisors (45334365).

78738363 is a wasteful number, since it uses less digits than its factorization.

78738363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795354 (or 795351 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 78738363 is about 8873.4639797545. The cubic root of 78738363 is about 428.6098299400.

The spelling of 78738363 in words is "seventy-eight million, seven hundred thirty-eight thousand, three hundred sixty-three".