61889268 has 48 divisors (see below), whose sum is σ = 170369024. Its totient is φ = 17111520.

The previous prime is 61889263. The next prime is 61889273. The reversal of 61889268 is 86298816.

It is an interprime number because it is at equal distance from previous prime (61889263) and next prime (61889273).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61889263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9280 + ... + 14487.

Almost surely, 2^61889268 is an apocalyptic number.

It is an amenable number.

61889268 is an abundant number, since it is smaller than the sum of its proper divisors (108479756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61889268 is a wasteful number, since it uses less digits than its factorization.

61889268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23812 (or 23810 counting only the distinct ones).

The product of its digits is 331776, while the sum is 48.

The square root of 61889268 is about 7866.9732426137. The cubic root of 61889268 is about 395.5533940719.

The spelling of 61889268 in words is "sixty-one million, eight hundred eighty-nine thousand, two hundred sixty-eight".