61954617 has 16 divisors (see below), whose sum is σ = 86381568. Its totient is φ = 39423120.

The previous prime is 61954609. The next prime is 61954637. The reversal of 61954617 is 71645916.

It is not a de Polignac number, because 61954617 - 2³ = 61954609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61954637) 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, 56242 + ... + 57332.

It is an arithmetic number, because the mean of its divisors is an integer number (5398848).

Almost surely, 2^61954617 is an apocalyptic number.

It is an amenable number.

61954617 is a deficient number, since it is larger than the sum of its proper divisors (24426951).

61954617 is a wasteful number, since it uses less digits than its factorization.

61954617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940.

The product of its digits is 45360, while the sum is 39.

The square root of 61954617 is about 7871.1255230748. The cubic root of 61954617 is about 395.6925669684.

The spelling of 61954617 in words is "sixty-one million, nine hundred fifty-four thousand, six hundred seventeen".