194963973 has 8 divisors (see below), whose sum is σ = 275243328. Its totient is φ = 122330304.

The previous prime is 194963971. The next prime is 194963987. The reversal of 194963973 is 379369491.

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

It is not a de Polignac number, because 194963973 - 2¹ = 194963971 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 3822823 = 194963973 / (1 + 9 + 4 + 9 + 6 + 3 + 9 + 7 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194963971) 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, 1911361 + ... + 1911462.

It is an arithmetic number, because the mean of its divisors is an integer number (34405416).

Almost surely, 2^194963973 is an apocalyptic number.

It is an amenable number.

194963973 is a deficient number, since it is larger than the sum of its proper divisors (80279355).

194963973 is a wasteful number, since it uses less digits than its factorization.

194963973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822843.

The product of its digits is 1102248, while the sum is 51.

The square root of 194963973 is about 13962.9500106532. The cubic root of 194963973 is about 579.8532853243.

The spelling of 194963973 in words is "one hundred ninety-four million, nine hundred sixty-three thousand, nine hundred seventy-three".