61129677 has 16 divisors (see below), whose sum is σ = 93748352. Its totient is φ = 34706880.

The previous prime is 61129639. The next prime is 61129681. The reversal of 61129677 is 77692116.

It is not a de Polignac number, because 61129677 - 2¹⁰ = 61128653 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 (61129687) 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, 5974 + ... + 12567.

It is an arithmetic number, because the mean of its divisors is an integer number (5859272).

Almost surely, 2^61129677 is an apocalyptic number.

It is an amenable number.

61129677 is a deficient number, since it is larger than the sum of its proper divisors (32618675).

61129677 is a wasteful number, since it uses less digits than its factorization.

61129677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18708.

The product of its digits is 31752, while the sum is 39.

The square root of 61129677 is about 7818.5469877721. The cubic root of 61129677 is about 393.9284679504.

The spelling of 61129677 in words is "sixty-one million, one hundred twenty-nine thousand, six hundred seventy-seven".