61873930 has 8 divisors (see below), whose sum is σ = 111373092. Its totient is φ = 24749568.

The previous prime is 61873921. The next prime is 61873943. The reversal of 61873930 is 3937816.

It can be written as a sum of positive squares in 2 ways, for example, as 60202081 + 1671849 = 7759^2 + 1293^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 61873930.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3093687 + ... + 3093706.

Almost surely, 2^61873930 is an apocalyptic number.

61873930 is a deficient number, since it is larger than the sum of its proper divisors (49499162).

61873930 is a wasteful number, since it uses less digits than its factorization.

61873930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6187400.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 61873930 is about 7865.9983473174. The cubic root of 61873930 is about 395.5207147431.

The spelling of 61873930 in words is "sixty-one million, eight hundred seventy-three thousand, nine hundred thirty".