61860001 has 12 divisors (see below), whose sum is σ = 72171120. Its totient is φ = 52867080.

The previous prime is 61859971. The next prime is 61860013. The reversal of 61860001 is 10006816.

It is not a de Polignac number, because 61860001 - 2⁷ = 61859873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61860031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16906 + ... + 20236.

It is an arithmetic number, because the mean of its divisors is an integer number (6014260).

Almost surely, 2^61860001 is an apocalyptic number.

It is an amenable number.

61860001 is a deficient number, since it is larger than the sum of its proper divisors (10311119).

61860001 is a wasteful number, since it uses less digits than its factorization.

61860001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3724 (or 3717 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 61860001 is about 7865.1129044662. The cubic root of 61860001 is about 395.4910327672.

Adding to 61860001 its reverse (10006816), we get a palindrome (71866817).

The spelling of 61860001 in words is "sixty-one million, eight hundred sixty thousand, one".