78351361 has 8 divisors (see below), whose sum is σ = 85795200. Its totient is φ = 70961040.

The previous prime is 78351337. The next prime is 78351373. The reversal of 78351361 is 16315387.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78351361 is a prime.

It is a super-2 number, since 2×78351361² = 12277871541104642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78351661) 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, 10281 + ... + 16198.

It is an arithmetic number, because the mean of its divisors is an integer number (10724400).

Almost surely, 2^78351361 is an apocalyptic number.

It is an amenable number.

78351361 is a deficient number, since it is larger than the sum of its proper divisors (7443839).

78351361 is a wasteful number, since it uses less digits than its factorization.

78351361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26759.

The product of its digits is 15120, while the sum is 34.

The square root of 78351361 is about 8851.6304147880. The cubic root of 78351361 is about 427.9064652070.

The spelling of 78351361 in words is "seventy-eight million, three hundred fifty-one thousand, three hundred sixty-one".