71620315 has 8 divisors (see below), whose sum is σ = 92555568. Its totient is φ = 52888800.

The previous prime is 71620313. The next prime is 71620349. The reversal of 71620315 is 51302617.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71620315 - 2¹ = 71620313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71620315.

It is not an unprimeable number, because it can be changed into a prime (71620313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550861 + ... + 550990.

It is an arithmetic number, because the mean of its divisors is an integer number (11569446).

Almost surely, 2^71620315 is an apocalyptic number.

71620315 is a deficient number, since it is larger than the sum of its proper divisors (20935253).

71620315 is a wasteful number, since it uses less digits than its factorization.

71620315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101869.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 71620315 is about 8462.8786473634. The cubic root of 71620315 is about 415.2842007419.

The spelling of 71620315 in words is "seventy-one million, six hundred twenty thousand, three hundred fifteen".