4961623 has 4 divisors (see below), whose sum is σ = 4970800. Its totient is φ = 4952448.

The previous prime is 4961609. The next prime is 4961633. The reversal of 4961623 is 3261694.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4961623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4961633) 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, 3723 + ... + 4876.

It is an arithmetic number, because the mean of its divisors is an integer number (1242700).

Almost surely, 2^4961623 is an apocalyptic number.

4961623 is a deficient number, since it is larger than the sum of its proper divisors (9177).

4961623 is an equidigital number, since it uses as much as digits as its factorization.

4961623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9176.

The product of its digits is 7776, while the sum is 31.

The square root of 4961623 is about 2227.4700895859. The cubic root of 4961623 is about 170.5589789164.

The spelling of 4961623 in words is "four million, nine hundred sixty-one thousand, six hundred twenty-three".