61920303 has 12 divisors (see below), whose sum is σ = 83167560. Its totient is φ = 40978272.

The previous prime is 61920289. The next prime is 61920311. The reversal of 61920303 is 30302916.

It is not a de Polignac number, because 61920303 - 2⁹ = 61919791 is a prime.

It is a super-2 number, since 2×61920303² = 7668247847223618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61920343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223401 + ... + 223677.

It is an arithmetic number, because the mean of its divisors is an integer number (6930630).

Almost surely, 2^61920303 is an apocalyptic number.

61920303 is a deficient number, since it is larger than the sum of its proper divisors (21247257).

61920303 is an equidigital number, since it uses as much as digits as its factorization.

61920303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 61920303 is about 7868.9454820834. The cubic root of 61920303 is about 395.6195011078.

The spelling of 61920303 in words is "sixty-one million, nine hundred twenty thousand, three hundred three".