78758298 has 16 divisors (see below), whose sum is σ = 175018560. Its totient is φ = 26252748.

The previous prime is 78758293. The next prime is 78758341. The reversal of 78758298 is 89285787.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 1458487 = 78758298 / (7 + 8 + 7 + 5 + 8 + 2 + 9 + 8).

It is not an unprimeable number, because it can be changed into a prime (78758293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729190 + ... + 729297.

It is an arithmetic number, because the mean of its divisors is an integer number (10938660).

Almost surely, 2^78758298 is an apocalyptic number.

78758298 is an abundant number, since it is smaller than the sum of its proper divisors (96260262).

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

78758298 is a wasteful number, since it uses less digits than its factorization.

78758298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458498 (or 1458492 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 54.

The square root of 78758298 is about 8874.5872016675. The cubic root of 78758298 is about 428.6459987385.

The spelling of 78758298 in words is "seventy-eight million, seven hundred fifty-eight thousand, two hundred ninety-eight".