72261335 has 8 divisors (see below), whose sum is σ = 87347376. Its totient is φ = 57386560.

The previous prime is 72261317. The next prime is 72261347. The reversal of 72261335 is 53316227.

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

It is not a de Polignac number, because 72261335 - 2²⁶ = 5152471 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72261298 and 72261307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52061 + ... + 53430.

It is an arithmetic number, because the mean of its divisors is an integer number (10918422).

Almost surely, 2^72261335 is an apocalyptic number.

72261335 is a deficient number, since it is larger than the sum of its proper divisors (15086041).

72261335 is a wasteful number, since it uses less digits than its factorization.

72261335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105633.

The product of its digits is 7560, while the sum is 29.

The square root of 72261335 is about 8500.6667385565. Note that the first 3 decimals coincide. The cubic root of 72261335 is about 416.5194889969.

The spelling of 72261335 in words is "seventy-two million, two hundred sixty-one thousand, three hundred thirty-five".