61904198 has 8 divisors (see below), whose sum is σ = 93120408. Its totient is φ = 30864064.

The previous prime is 61904197. The next prime is 61904207. The reversal of 61904198 is 89140916.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61904197) 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, 43136 + ... + 44547.

It is an arithmetic number, because the mean of its divisors is an integer number (11640051).

Almost surely, 2^61904198 is an apocalyptic number.

61904198 is a deficient number, since it is larger than the sum of its proper divisors (31216210).

61904198 is a wasteful number, since it uses less digits than its factorization.

61904198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88038.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 61904198 is about 7867.9220890906. The cubic root of 61904198 is about 395.5851989256.

The spelling of 61904198 in words is "sixty-one million, nine hundred four thousand, one hundred ninety-eight".