79340287 has 4 divisors (see below), whose sum is σ = 85443400. Its totient is φ = 73237176.

The previous prime is 79340273. The next prime is 79340293. The reversal of 79340287 is 78204397.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78204397 = 367 ⋅213091.

It is a cyclic number.

It is not a de Polignac number, because 79340287 - 2¹⁹ = 78815999 is a prime.

It is a super-2 number, since 2×79340287² = 12589762282484738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79340237) 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, 3051537 + ... + 3051562.

It is an arithmetic number, because the mean of its divisors is an integer number (21360850).

Almost surely, 2^79340287 is an apocalyptic number.

79340287 is a deficient number, since it is larger than the sum of its proper divisors (6103113).

79340287 is a wasteful number, since it uses less digits than its factorization.

79340287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6103112.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 79340287 is about 8907.3164870235. The cubic root of 79340287 is about 429.6992434485.

The spelling of 79340287 in words is "seventy-nine million, three hundred forty thousand, two hundred eighty-seven".