78363274 has 16 divisors (see below), whose sum is σ = 129504096. Its totient is φ = 35266000.

The previous prime is 78363227. The next prime is 78363281. The reversal of 78363274 is 47236387.

It is a happy number.

It is a super-2 number, since 2×78363274² = 12281605423998152, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15412 + ... + 19855.

It is an arithmetic number, because the mean of its divisors is an integer number (8094006).

Almost surely, 2^78363274 is an apocalyptic number.

78363274 is a deficient number, since it is larger than the sum of its proper divisors (51140822).

78363274 is a wasteful number, since it uses less digits than its factorization.

78363274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35381.

The product of its digits is 169344, while the sum is 40.

The square root of 78363274 is about 8852.3033160867. The cubic root of 78363274 is about 427.9281512433.

The spelling of 78363274 in words is "seventy-eight million, three hundred sixty-three thousand, two hundred seventy-four".