61887485 has 32 divisors (see below), whose sum is σ = 83980800. Its totient is φ = 43394560.

The previous prime is 61887467. The next prime is 61887487. The reversal of 61887485 is 58478816.

It is a happy number.

It is not a de Polignac number, because 61887485 - 2⁸ = 61887229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61887487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229931 + ... + 230199.

It is an arithmetic number, because the mean of its divisors is an integer number (2624400).

Almost surely, 2^61887485 is an apocalyptic number.

It is an amenable number.

61887485 is a deficient number, since it is larger than the sum of its proper divisors (22093315).

61887485 is a wasteful number, since it uses less digits than its factorization.

61887485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421.

The product of its digits is 430080, while the sum is 47.

The square root of 61887485 is about 7866.8599199426. The cubic root of 61887485 is about 395.5495954678.

The spelling of 61887485 in words is "sixty-one million, eight hundred eighty-seven thousand, four hundred eighty-five".