61900998 has 16 divisors (see below), whose sum is σ = 124960320. Its totient is φ = 20440616.

The previous prime is 61900987. The next prime is 61901023. The reversal of 61900998 is 89900916.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47568 + ... + 48851.

It is an arithmetic number, because the mean of its divisors is an integer number (7810020).

Almost surely, 2^61900998 is an apocalyptic number.

61900998 is an abundant number, since it is smaller than the sum of its proper divisors (63059322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61900998 is a wasteful number, since it uses less digits than its factorization.

61900998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96531.

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 61900998 is about 7867.7187290853. The cubic root of 61900998 is about 395.5783825088.

The spelling of 61900998 in words is "sixty-one million, nine hundred thousand, nine hundred ninety-eight".