72894535 has 16 divisors (see below), whose sum is σ = 100108800. Its totient is φ = 49915296.

The previous prime is 72894533. The next prime is 72894539. The reversal of 72894535 is 53549827.

It is a cyclic number.

It is not a de Polignac number, because 72894535 - 2¹ = 72894533 is a prime.

It is a super-2 number, since 2×72894535² = 10627226465732450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72894491 and 72894500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72894533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45376 + ... + 46954.

It is an arithmetic number, because the mean of its divisors is an integer number (6256800).

Almost surely, 2^72894535 is an apocalyptic number.

72894535 is a deficient number, since it is larger than the sum of its proper divisors (27214265).

72894535 is a wasteful number, since it uses less digits than its factorization.

72894535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910.

The product of its digits is 302400, while the sum is 43.

The square root of 72894535 is about 8537.8296422452. The cubic root of 72894535 is about 417.7325559647.

The spelling of 72894535 in words is "seventy-two million, eight hundred ninety-four thousand, five hundred thirty-five".