78371353 has 8 divisors (see below), whose sum is σ = 79482600. Its totient is φ = 77265408.

The previous prime is 78371341. The next prime is 78371389. The reversal of 78371353 is 35317387.

It can be written as a sum of positive squares in 4 ways, for example, as 3583449 + 74787904 = 1893^2 + 8648^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 78371353 - 2²⁵ = 44816921 is a prime.

It is a super-2 number, since 2×78371353² = 12284137942101218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78371393) 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, 35325 + ... + 37477.

It is an arithmetic number, because the mean of its divisors is an integer number (9935325).

Almost surely, 2^78371353 is an apocalyptic number.

It is an amenable number.

78371353 is a deficient number, since it is larger than the sum of its proper divisors (1111247).

78371353 is a wasteful number, since it uses less digits than its factorization.

78371353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2651.

The product of its digits is 52920, while the sum is 37.

The square root of 78371353 is about 8852.7596262408. The cubic root of 78371353 is about 427.9428567405.

The spelling of 78371353 in words is "seventy-eight million, three hundred seventy-one thousand, three hundred fifty-three".