61496687 has 16 divisors (see below), whose sum is σ = 74445312. Its totient is φ = 49658400.

The previous prime is 61496671. The next prime is 61496689. The reversal of 61496687 is 78669416.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 61496687 - 2⁴ = 61496671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61496689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7937 + ... + 13637.

It is an arithmetic number, because the mean of its divisors is an integer number (4652832).

Almost surely, 2^61496687 is an apocalyptic number.

61496687 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

61496687 is a deficient number, since it is larger than the sum of its proper divisors (12948625).

61496687 is a wasteful number, since it uses less digits than its factorization.

61496687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5798.

The product of its digits is 435456, while the sum is 47.

The square root of 61496687 is about 7841.9823386692. The cubic root of 61496687 is about 394.7152506344.

The spelling of 61496687 in words is "sixty-one million, four hundred ninety-six thousand, six hundred eighty-seven".