78232235 has 4 divisors (see below), whose sum is σ = 93878688. Its totient is φ = 62585784.

The previous prime is 78232229. The next prime is 78232247. The reversal of 78232235 is 53223287.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78232235 is a prime.

It is a super-2 number, since 2×78232235² = 12240565186190450, which contains 22 as substring.

It is a Duffinian number.

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, 7823219 + ... + 7823228.

It is an arithmetic number, because the mean of its divisors is an integer number (23469672).

Almost surely, 2^78232235 is an apocalyptic number.

78232235 is a deficient number, since it is larger than the sum of its proper divisors (15646453).

78232235 is a wasteful number, since it uses less digits than its factorization.

78232235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15646452.

The product of its digits is 20160, while the sum is 32.

The square root of 78232235 is about 8844.8988123098. The cubic root of 78232235 is about 427.6894911348.

The spelling of 78232235 in words is "seventy-eight million, two hundred thirty-two thousand, two hundred thirty-five".