78397301 has 4 divisors (see below), whose sum is σ = 78416832. Its totient is φ = 78377772.

The previous prime is 78397283. The next prime is 78397307. The reversal of 78397301 is 10379387.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78397301 - 2¹⁴ = 78380917 is a prime.

It is a super-2 number, since 2×78397301² = 12292273608169202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78397307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1295 + ... + 12588.

It is an arithmetic number, because the mean of its divisors is an integer number (19604208).

Almost surely, 2^78397301 is an apocalyptic number.

It is an amenable number.

78397301 is a deficient number, since it is larger than the sum of its proper divisors (19531).

78397301 is a wasteful number, since it uses less digits than its factorization.

78397301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19530.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 78397301 is about 8854.2250366703. The cubic root of 78397301 is about 427.9900807816.

The spelling of 78397301 in words is "seventy-eight million, three hundred ninety-seven thousand, three hundred one".