61761323 has 16 divisors (see below), whose sum is σ = 70741440. Its totient is φ = 53601408.

The previous prime is 61761317. The next prime is 61761347. The reversal of 61761323 is 32316716.

It is not a de Polignac number, because 61761323 - 2²² = 57567019 is a prime.

It is a super-2 number, since 2×61761323² = 7628922037420658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61761313) 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, 63386 + ... + 64352.

It is an arithmetic number, because the mean of its divisors is an integer number (4421340).

Almost surely, 2^61761323 is an apocalyptic number.

61761323 is a deficient number, since it is larger than the sum of its proper divisors (8980117).

61761323 is an equidigital number, since it uses as much as digits as its factorization.

61761323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031 (or 997 counting only the distinct ones).

The product of its digits is 4536, while the sum is 29.

The square root of 61761323 is about 7858.8372549634. The cubic root of 61761323 is about 395.2806273719.

It can be divided in two parts, 61 and 761323, that multiplied together give a triangular number (46440703 = T₉₆₃₇).

The spelling of 61761323 in words is "sixty-one million, seven hundred sixty-one thousand, three hundred twenty-three".