61494773 has 8 divisors (see below), whose sum is σ = 66237600. Its totient is φ = 56902608.

The previous prime is 61494767. The next prime is 61494809. The reversal of 61494773 is 37749416.

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

It is a cyclic number.

It is not a de Polignac number, because 61494773 - 2⁴ = 61494757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61494773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61494743) 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, 36818 + ... + 38451.

It is an arithmetic number, because the mean of its divisors is an integer number (8279700).

Almost surely, 2^61494773 is an apocalyptic number.

It is an amenable number.

61494773 is a deficient number, since it is larger than the sum of its proper divisors (4742827).

61494773 is a wasteful number, since it uses less digits than its factorization.

61494773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75331.

The product of its digits is 127008, while the sum is 41.

The square root of 61494773 is about 7841.8603022497. The cubic root of 61494773 is about 394.7111556017.

The spelling of 61494773 in words is "sixty-one million, four hundred ninety-four thousand, seven hundred seventy-three".