61623733 has 4 divisors (see below), whose sum is σ = 61933600. Its totient is φ = 61313868.

The previous prime is 61623701. The next prime is 61623769. The reversal of 61623733 is 33732616.

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 61623733 - 2⁵ = 61623701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61623695 and 61623704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61663733) 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, 154635 + ... + 155032.

It is an arithmetic number, because the mean of its divisors is an integer number (15483400).

Almost surely, 2^61623733 is an apocalyptic number.

It is an amenable number.

61623733 is a deficient number, since it is larger than the sum of its proper divisors (309867).

61623733 is a wasteful number, since it uses less digits than its factorization.

61623733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309866.

The product of its digits is 13608, while the sum is 31.

The square root of 61623733 is about 7850.0785346390. The cubic root of 61623733 is about 394.9868777353.

The spelling of 61623733 in words is "sixty-one million, six hundred twenty-three thousand, seven hundred thirty-three".