61999982 has 8 divisors (see below), whose sum is σ = 101454552. Its totient is φ = 28181800.

The previous prime is 61999967. The next prime is 61999997. The reversal of 61999982 is 28999916.

It is an interprime number because it is at equal distance from previous prime (61999967) and next prime (61999997).

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

It is a congruent number.

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, 1409069 + ... + 1409112.

It is an arithmetic number, because the mean of its divisors is an integer number (12681819).

Almost surely, 2^61999982 is an apocalyptic number.

61999982 is a deficient number, since it is larger than the sum of its proper divisors (39454570).

61999982 is a wasteful number, since it uses less digits than its factorization.

61999982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818194.

The product of its digits is 629856, while the sum is 53.

The square root of 61999982 is about 7874.0067310106. The cubic root of 61999982 is about 395.7891226659.

The spelling of 61999982 in words is "sixty-one million, nine hundred ninety-nine thousand, nine hundred eighty-two".