78076907 has 4 divisors (see below), whose sum is σ = 78099840. Its totient is φ = 78053976.

The previous prime is 78076847. The next prime is 78076951. The reversal of 78076907 is 70967087.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70967087 = 89 ⋅797383.

It is a cyclic number.

It is not a de Polignac number, because 78076907 - 2¹² = 78072811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78076967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5228 + ... + 13545.

It is an arithmetic number, because the mean of its divisors is an integer number (19524960).

Almost surely, 2^78076907 is an apocalyptic number.

78076907 is a deficient number, since it is larger than the sum of its proper divisors (22933).

78076907 is a wasteful number, since it uses less digits than its factorization.

78076907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22932.

The product of its (nonzero) digits is 148176, while the sum is 44.

The square root of 78076907 is about 8836.1137951025. The cubic root of 78076907 is about 427.4062482650.

The spelling of 78076907 in words is "seventy-eight million, seventy-six thousand, nine hundred seven".