72649614 has 16 divisors (see below), whose sum is σ = 147346560. Its totient is φ = 23875320.

The previous prime is 72649613. The next prime is 72649627. The reversal of 72649614 is 41694627.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72649613) 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, 84844 + ... + 85695.

It is an arithmetic number, because the mean of its divisors is an integer number (9209160).

Almost surely, 2^72649614 is an apocalyptic number.

72649614 is an abundant number, since it is smaller than the sum of its proper divisors (74696946).

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

72649614 is a wasteful number, since it uses less digits than its factorization.

72649614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170615.

The product of its digits is 72576, while the sum is 39.

The square root of 72649614 is about 8523.4742916255. The cubic root of 72649614 is about 417.2641793967.

The spelling of 72649614 in words is "seventy-two million, six hundred forty-nine thousand, six hundred fourteen".