472187849 has 4 divisors (see below), whose sum is σ = 539643264. Its totient is φ = 404732436.

The previous prime is 472187839. The next prime is 472187851. The reversal of 472187849 is 948781274.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 472187849 - 2¹² = 472183753 is a prime.

It is a super-2 number, since 2×472187849² = 445922729486493602, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 472187797 and 472187806.

It is not an unprimeable number, because it can be changed into a prime (472187839) 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, 33727697 + ... + 33727710.

It is an arithmetic number, because the mean of its divisors is an integer number (134910816).

Almost surely, 2^472187849 is an apocalyptic number.

It is an amenable number.

472187849 is a deficient number, since it is larger than the sum of its proper divisors (67455415).

472187849 is an equidigital number, since it uses as much as digits as its factorization.

472187849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67455414.

The product of its digits is 903168, while the sum is 50.

The square root of 472187849 is about 21729.8837778760. The cubic root of 472187849 is about 778.7025597976.

The spelling of 472187849 in words is "four hundred seventy-two million, one hundred eighty-seven thousand, eight hundred forty-nine".