61288893 has 40 divisors (see below), whose sum is σ = 99107712. Its totient is φ = 37597824.

The previous prime is 61288879. The next prime is 61288897. The reversal of 61288893 is 39888216.

It is not a de Polignac number, because 61288893 - 2¹³ = 61280701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61288897) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 64246 + ... + 65192.

Almost surely, 2^61288893 is an apocalyptic number.

It is an amenable number.

61288893 is a deficient number, since it is larger than the sum of its proper divisors (37818819).

61288893 is a wasteful number, since it uses less digits than its factorization.

61288893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023 (or 1014 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 61288893 is about 7828.7223095471. The cubic root of 61288893 is about 394.2701750897.

The spelling of 61288893 in words is "sixty-one million, two hundred eighty-eight thousand, eight hundred ninety-three".