78632150 has 12 divisors (see below), whose sum is σ = 146255892. Its totient is φ = 31452840.

The previous prime is 78632131. The next prime is 78632153. The reversal of 78632150 is 5123687.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78632153) 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, 786272 + ... + 786371.

It is an arithmetic number, because the mean of its divisors is an integer number (12187991).

Almost surely, 2^78632150 is an apocalyptic number.

78632150 is a deficient number, since it is larger than the sum of its proper divisors (67623742).

78632150 is a wasteful number, since it uses less digits than its factorization.

78632150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572655 (or 1572650 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 78632150 is about 8867.4770932887. The cubic root of 78632150 is about 428.4170208310.

The spelling of 78632150 in words is "seventy-eight million, six hundred thirty-two thousand, one hundred fifty".