78304967 has 6 divisors (see below), whose sum is σ = 84791952. Its totient is φ = 72281352.

The previous prime is 78304951. The next prime is 78304969. The reversal of 78304967 is 76940387.

It is not a de Polignac number, because 78304967 - 2⁴ = 78304951 is a prime.

It is a super-2 number, since 2×78304967² = 12263335713742178, 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 (78304969) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 231503 + ... + 231840.

It is an arithmetic number, because the mean of its divisors is an integer number (14131992).

Almost surely, 2^78304967 is an apocalyptic number.

78304967 is a deficient number, since it is larger than the sum of its proper divisors (6486985).

78304967 is a wasteful number, since it uses less digits than its factorization.

78304967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463369 (or 463356 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 78304967 is about 8849.0093795859. The cubic root of 78304967 is about 427.8219901281.

The spelling of 78304967 in words is "seventy-eight million, three hundred four thousand, nine hundred sixty-seven".