61907849 has 8 divisors (see below), whose sum is σ = 63011520. Its totient is φ = 60814000.

The previous prime is 61907821. The next prime is 61907851. The reversal of 61907849 is 94870916.

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 61907849 - 2¹² = 61903753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61907809) 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, 10892 + ... + 15570.

It is an arithmetic number, because the mean of its divisors is an integer number (7876440).

Almost surely, 2^61907849 is an apocalyptic number.

It is an amenable number.

61907849 is a deficient number, since it is larger than the sum of its proper divisors (1103671).

61907849 is a wasteful number, since it uses less digits than its factorization.

61907849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4911.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 61907849 is about 7868.1541037273. The cubic root of 61907849 is about 395.5929757443.

The spelling of 61907849 in words is "sixty-one million, nine hundred seven thousand, eight hundred forty-nine".