61876491 has 8 divisors (see below), whose sum is σ = 82635264. Its totient is φ = 41184360.

The previous prime is 61876489. The next prime is 61876511. The reversal of 61876491 is 19467816.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61876491 - 2¹ = 61876489 is a prime.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (61876411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14451 + ... + 18236.

It is an arithmetic number, because the mean of its divisors is an integer number (10329408).

Almost surely, 2^61876491 is an apocalyptic number.

61876491 is a deficient number, since it is larger than the sum of its proper divisors (20758773).

61876491 is a wasteful number, since it uses less digits than its factorization.

61876491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33321.

The product of its digits is 72576, while the sum is 42.

The square root of 61876491 is about 7866.1611348866. The cubic root of 61876491 is about 395.5261716163.

The spelling of 61876491 in words is "sixty-one million, eight hundred seventy-six thousand, four hundred ninety-one".