61923213 has 24 divisors (see below), whose sum is σ = 100728576. Its totient is φ = 36316800.

The previous prime is 61923193. The next prime is 61923221. The reversal of 61923213 is 31232916.

61923213 is a `hidden beast` number, since 619 + 2 + 32 + 13 = 666.

It is not a de Polignac number, because 61923213 - 2⁵ = 61923181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61923293) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7020 + ... + 13157.

It is an arithmetic number, because the mean of its divisors is an integer number (4197024).

Almost surely, 2^61923213 is an apocalyptic number.

It is an amenable number.

61923213 is a deficient number, since it is larger than the sum of its proper divisors (38805363).

61923213 is a wasteful number, since it uses less digits than its factorization.

61923213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20225 (or 20222 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 61923213 is about 7869.1303839751. The cubic root of 61923213 is about 395.6256985081.

It can be divided in two parts, 619 and 23213, that added together give a palindrome (23832).

The spelling of 61923213 in words is "sixty-one million, nine hundred twenty-three thousand, two hundred thirteen".