65198423 has 8 divisors (see below), whose sum is σ = 65940480. Its totient is φ = 64460920.

The previous prime is 65198411. The next prime is 65198479. The reversal of 65198423 is 32489156.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 65198423 - 2⁴ = 65198407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65192423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33236 + ... + 35142.

It is an arithmetic number, because the mean of its divisors is an integer number (8242560).

Almost surely, 2^65198423 is an apocalyptic number.

65198423 is a deficient number, since it is larger than the sum of its proper divisors (742057).

65198423 is a wasteful number, since it uses less digits than its factorization.

65198423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277.

The product of its digits is 51840, while the sum is 38.

The square root of 65198423 is about 8074.5540434132. The cubic root of 65198423 is about 402.4812907472.

The spelling of 65198423 in words is "sixty-five million, one hundred ninety-eight thousand, four hundred twenty-three".