78252998 has 8 divisors (see below), whose sum is σ = 119369160. Its totient is φ = 38463280.

The previous prime is 78252973. The next prime is 78253003. The reversal of 78252998 is 89925287.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78252998² = 12247063391976008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331463 + ... + 331698.

It is an arithmetic number, because the mean of its divisors is an integer number (14921145).

Almost surely, 2^78252998 is an apocalyptic number.

78252998 is a deficient number, since it is larger than the sum of its proper divisors (41116162).

78252998 is a wasteful number, since it uses less digits than its factorization.

78252998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663222.

The product of its digits is 725760, while the sum is 50.

The square root of 78252998 is about 8846.0724618330. The cubic root of 78252998 is about 427.7273243520.

The spelling of 78252998 in words is "seventy-eight million, two hundred fifty-two thousand, nine hundred ninety-eight".