78254795 has 4 divisors (see below), whose sum is σ = 93905760. Its totient is φ = 62603832.

The previous prime is 78254779. The next prime is 78254837. The reversal of 78254795 is 59745287.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78254795 - 2⁴ = 78254779 is a prime.

It is a super-2 number, since 2×78254795² = 12247625880984050, which contains 22 as substring.

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, 7825475 + ... + 7825484.

It is an arithmetic number, because the mean of its divisors is an integer number (23476440).

Almost surely, 2^78254795 is an apocalyptic number.

78254795 is a deficient number, since it is larger than the sum of its proper divisors (15650965).

78254795 is a wasteful number, since it uses less digits than its factorization.

78254795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15650964.

The product of its digits is 705600, while the sum is 47.

The square root of 78254795 is about 8846.1740317495. The cubic root of 78254795 is about 427.7305984337.

The spelling of 78254795 in words is "seventy-eight million, two hundred fifty-four thousand, seven hundred ninety-five".