61411587 has 16 divisors (see below), whose sum is σ = 86281728. Its totient is φ = 38776320.

The previous prime is 61411561. The next prime is 61411631. The reversal of 61411587 is 78511416.

It is a happy number.

It is not a de Polignac number, because 61411587 - 2⁸ = 61411331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61411517) 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, 2787 + ... + 11427.

It is an arithmetic number, because the mean of its divisors is an integer number (5392608).

Almost surely, 2^61411587 is an apocalyptic number.

61411587 is a deficient number, since it is larger than the sum of its proper divisors (24870141).

61411587 is a wasteful number, since it uses less digits than its factorization.

61411587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8770.

The product of its digits is 6720, while the sum is 33.

The square root of 61411587 is about 7836.5545362742. The cubic root of 61411587 is about 394.5330957052.

The spelling of 61411587 in words is "sixty-one million, four hundred eleven thousand, five hundred eighty-seven".