61888849 has 4 divisors (see below), whose sum is σ = 67515120. Its totient is φ = 56262580.

The previous prime is 61888843. The next prime is 61888859. The reversal of 61888849 is 94888816.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 61888849 - 2²⁵ = 28334417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61888796 and 61888805.

It is not an unprimeable number, because it can be changed into a prime (61888843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2813119 + ... + 2813140.

It is an arithmetic number, because the mean of its divisors is an integer number (16878780).

Almost surely, 2^61888849 is an apocalyptic number.

It is an amenable number.

61888849 is a deficient number, since it is larger than the sum of its proper divisors (5626271).

61888849 is a wasteful number, since it uses less digits than its factorization.

61888849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5626270.

The product of its digits is 884736, while the sum is 52.

The square root of 61888849 is about 7866.9466122505. The cubic root of 61888849 is about 395.5525014172.

The spelling of 61888849 in words is "sixty-one million, eight hundred eighty-eight thousand, eight hundred forty-nine".