61324749 has 8 divisors (see below), whose sum is σ = 90851520. Its totient is φ = 40883148.

The previous prime is 61324741. The next prime is 61324787. The reversal of 61324749 is 94742316.

It is not a de Polignac number, because 61324749 - 2³ = 61324741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61324741) 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, 1135617 + ... + 1135670.

It is an arithmetic number, because the mean of its divisors is an integer number (11356440).

Almost surely, 2^61324749 is an apocalyptic number.

It is an amenable number.

61324749 is a deficient number, since it is larger than the sum of its proper divisors (29526771).

61324749 is a wasteful number, since it uses less digits than its factorization.

61324749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271296 (or 2271290 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 61324749 is about 7831.0120035663. The cubic root of 61324749 is about 394.3470470684.

The spelling of 61324749 in words is "sixty-one million, three hundred twenty-four thousand, seven hundred forty-nine".