61927398 has 48 divisors (see below), whose sum is σ = 149175936. Its totient is φ = 18437760.

The previous prime is 61927391. The next prime is 61927399. The reversal of 61927398 is 89372916.

61927398 is a `hidden beast` number, since 619 + 27 + 3 + 9 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61927391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2986 + ... + 11522.

It is an arithmetic number, because the mean of its divisors is an integer number (3107832).

Almost surely, 2^61927398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61927398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74587968).

61927398 is an abundant number, since it is smaller than the sum of its proper divisors (87248538).

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

61927398 is a wasteful number, since it uses less digits than its factorization.

61927398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8589 (or 8586 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 61927398 is about 7869.3962919655. The cubic root of 61927398 is about 395.6346109238.

The spelling of 61927398 in words is "sixty-one million, nine hundred twenty-seven thousand, three hundred ninety-eight".