472192901 has 8 divisors (see below), whose sum is σ = 500355864. Its totient is φ = 444072960.

The previous prime is 472192849. The next prime is 472192909. The reversal of 472192901 is 109291274.

It is a Cunningham number, because it is equal to 21730²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 28879876 + 443313025 = 5374^2 + 21055^2 .

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 472192901 - 2¹⁴ = 472176517 is a prime.

It is a super-2 number, since 2×472192901² = 445932271509591602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472192909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13421 + ... + 33533.

It is an arithmetic number, because the mean of its divisors is an integer number (62544483).

Almost surely, 2^472192901 is an apocalyptic number.

It is an amenable number.

472192901 is a deficient number, since it is larger than the sum of its proper divisors (28162963).

472192901 is a wasteful number, since it uses less digits than its factorization.

472192901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21511.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 472192901 is about 21730.0000230097. Note that the first 4 decimals coincide. The cubic root of 472192901 is about 778.7053369348.

The spelling of 472192901 in words is "four hundred seventy-two million, one hundred ninety-two thousand, nine hundred one".