61734198 has 8 divisors (see below), whose sum is σ = 123468408. Its totient is φ = 20578064.

The previous prime is 61734193. The next prime is 61734223. The reversal of 61734198 is 89143716.

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

61734198 is an admirable number.

It is a super-2 number, since 2×61734198² = 7622222405406408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61734193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5144511 + ... + 5144522.

It is an arithmetic number, because the mean of its divisors is an integer number (15433551).

Almost surely, 2^61734198 is an apocalyptic number.

61734198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61734198 is a wasteful number, since it uses less digits than its factorization.

61734198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10289038.

The product of its digits is 36288, while the sum is 39.

The square root of 61734198 is about 7857.1113012353. Note that the first 3 decimals coincide. The cubic root of 61734198 is about 395.2227510369. Note that the first 3 decimals are identical.

The spelling of 61734198 in words is "sixty-one million, seven hundred thirty-four thousand, one hundred ninety-eight".