61873402 has 8 divisors (see below), whose sum is σ = 93323412. Its totient is φ = 30765600.

The previous prime is 61873393. The next prime is 61873433. The reversal of 61873402 is 20437816.

It can be written as a sum of positive squares in 2 ways, for example, as 56715961 + 5157441 = 7531^2 + 2271^2 .

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

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, 85099 + ... + 85822.

Almost surely, 2^61873402 is an apocalyptic number.

61873402 is a deficient number, since it is larger than the sum of its proper divisors (31450010).

61873402 is a wasteful number, since it uses less digits than its factorization.

61873402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171104.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 61873402 is about 7865.9647850725. The cubic root of 61873402 is about 395.5195896837.

The spelling of 61873402 in words is "sixty-one million, eight hundred seventy-three thousand, four hundred two".