61988422 has 4 divisors (see below), whose sum is σ = 92982636. Its totient is φ = 30994210.

The previous prime is 61988419. The next prime is 61988453. The reversal of 61988422 is 22488916.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15497104 + ... + 15497107.

It is an arithmetic number, because the mean of its divisors is an integer number (23245659).

Almost surely, 2^61988422 is an apocalyptic number.

61988422 is a deficient number, since it is larger than the sum of its proper divisors (30994214).

61988422 is a wasteful number, since it uses less digits than its factorization.

61988422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30994213.

The product of its digits is 55296, while the sum is 40.

The square root of 61988422 is about 7873.2726359501. The cubic root of 61988422 is about 395.7645226230.

The spelling of 61988422 in words is "sixty-one million, nine hundred eighty-eight thousand, four hundred twenty-two".