72649333 has 4 divisors (see below), whose sum is σ = 73029888. Its totient is φ = 72268780.

The previous prime is 72649327. The next prime is 72649349. The reversal of 72649333 is 33394627.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72649333 - 2⁵ = 72649301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72649292 and 72649301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72649363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189991 + ... + 190372.

It is an arithmetic number, because the mean of its divisors is an integer number (18257472).

Almost surely, 2^72649333 is an apocalyptic number.

It is an amenable number.

72649333 is a deficient number, since it is larger than the sum of its proper divisors (380555).

72649333 is a wasteful number, since it uses less digits than its factorization.

72649333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380554.

The product of its digits is 81648, while the sum is 37.

The square root of 72649333 is about 8523.4578077210. The cubic root of 72649333 is about 417.2636414200.

The spelling of 72649333 in words is "seventy-two million, six hundred forty-nine thousand, three hundred thirty-three".