61273623 has 8 divisors (see below), whose sum is σ = 81760000. Its totient is φ = 40818168.

The previous prime is 61273609. The next prime is 61273643. The reversal of 61273623 is 32637216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61273623 - 2¹⁰ = 61272599 is a prime.

It is a super-2 number, since 2×61273623² = 7508913751092258, 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 (61273643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2623 + ... + 11376.

It is an arithmetic number, because the mean of its divisors is an integer number (10220000).

Almost surely, 2^61273623 is an apocalyptic number.

61273623 is a deficient number, since it is larger than the sum of its proper divisors (20486377).

61273623 is a wasteful number, since it uses less digits than its factorization.

61273623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15461.

The product of its digits is 9072, while the sum is 30.

The square root of 61273623 is about 7827.7469938674. The cubic root of 61273623 is about 394.2374285058.

The spelling of 61273623 in words is "sixty-one million, two hundred seventy-three thousand, six hundred twenty-three".