61674249 has 64 divisors (see below), whose sum is σ = 109057536. Its totient is φ = 30081024.

The previous prime is 61674203. The next prime is 61674253. The reversal of 61674249 is 94247616.

It is a happy number.

It is not a de Polignac number, because 61674249 - 2⁸ = 61673993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (61674259) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 450109 + ... + 450245.

It is an arithmetic number, because the mean of its divisors is an integer number (1704024).

Almost surely, 2^61674249 is an apocalyptic number.

It is an amenable number.

61674249 is a deficient number, since it is larger than the sum of its proper divisors (47383287).

61674249 is a wasteful number, since it uses less digits than its factorization.

61674249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274.

The product of its digits is 72576, while the sum is 39.

The square root of 61674249 is about 7853.2954229419. The cubic root of 61674249 is about 395.0947783034.

The spelling of 61674249 in words is "sixty-one million, six hundred seventy-four thousand, two hundred forty-nine".