78032201 has 12 divisors (see below), whose sum is σ = 85529808. Its totient is φ = 71149104.

The previous prime is 78032197. The next prime is 78032203. The reversal of 78032201 is 10223087.

It is not a de Polignac number, because 78032201 - 2² = 78032197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78032203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11246 + ... + 16808.

It is an arithmetic number, because the mean of its divisors is an integer number (7127484).

Almost surely, 2^78032201 is an apocalyptic number.

It is an amenable number.

78032201 is a deficient number, since it is larger than the sum of its proper divisors (7497607).

78032201 is a wasteful number, since it uses less digits than its factorization.

78032201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5672 (or 5659 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 78032201 is about 8833.5837008544. The cubic root of 78032201 is about 427.3246566114.

Adding to 78032201 its reverse (10223087), we get a palindrome (88255288).

The spelling of 78032201 in words is "seventy-eight million, thirty-two thousand, two hundred one".