79287238 has 4 divisors (see below), whose sum is σ = 118930860. Its totient is φ = 39643618.

The previous prime is 79287223. The next prime is 79287253. The reversal of 79287238 is 83278297.

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

It is an interprime number because it is at equal distance from previous prime (79287223) and next prime (79287253).

It is a super-2 number, since 2×79287238² = 12572932219337288, which contains 22 as substring.

It is a plaindrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19821808 + ... + 19821811.

It is an arithmetic number, because the mean of its divisors is an integer number (29732715).

Almost surely, 2^79287238 is an apocalyptic number.

79287238 is a deficient number, since it is larger than the sum of its proper divisors (39643622).

79287238 is a wasteful number, since it uses less digits than its factorization.

79287238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39643621.

The product of its digits is 338688, while the sum is 46.

The square root of 79287238 is about 8904.3381562023. The cubic root of 79287238 is about 429.6034526954.

The spelling of 79287238 in words is "seventy-nine million, two hundred eighty-seven thousand, two hundred thirty-eight".