72126702 has 12 divisors (see below), whose sum is σ = 156274560. Its totient is φ = 24042228.

The previous prime is 72126673. The next prime is 72126707. The reversal of 72126702 is 20762127.

It is a super-2 number, since 2×72126702² = 10404522282793608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72126707) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2003502 + ... + 2003537.

It is an arithmetic number, because the mean of its divisors is an integer number (13022880).

Almost surely, 2^72126702 is an apocalyptic number.

72126702 is an abundant number, since it is smaller than the sum of its proper divisors (84147858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72126702 is a wasteful number, since it uses less digits than its factorization.

72126702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007047 (or 4007044 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 72126702 is about 8492.7440795069. The cubic root of 72126702 is about 416.2606501076.

Adding to 72126702 its reverse (20762127), we get a palindrome (92888829).

The spelling of 72126702 in words is "seventy-two million, one hundred twenty-six thousand, seven hundred two".