78867466 has 8 divisors (see below), whose sum is σ = 119472804. Its totient is φ = 39043200.

The previous prime is 78867433. The next prime is 78867473. The reversal of 78867466 is 66476887.

It can be written as a sum of positive squares in 2 ways, for example, as 53071225 + 25796241 = 7285^2 + 5079^2 .

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

It is a super-2 number, since 2×78867466² = 12440154386522312, 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, 195015 + ... + 195418.

Almost surely, 2^78867466 is an apocalyptic number.

78867466 is a deficient number, since it is larger than the sum of its proper divisors (40605338).

78867466 is a wasteful number, since it uses less digits than its factorization.

78867466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390536.

The product of its digits is 2709504, while the sum is 52.

The square root of 78867466 is about 8880.7356677248. The cubic root of 78867466 is about 428.8439580791.

The spelling of 78867466 in words is "seventy-eight million, eight hundred sixty-seven thousand, four hundred sixty-six".