472177381 has 6 divisors (see below), whose sum is σ = 511292850. Its totient is φ = 435855888.

The previous prime is 472177351. The next prime is 472177421. The reversal of 472177381 is 183771274.

It can be written as a sum of positive squares in 3 ways, for example, as 12460900 + 459716481 = 3530^2 + 21441^2 .

It is not a de Polignac number, because 472177381 - 2¹³ = 472169189 is a prime.

It is a super-2 number, since 2×472177381² = 445902958256038322, 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 (472177351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1396806 + ... + 1397143.

It is an arithmetic number, because the mean of its divisors is an integer number (85215475).

Almost surely, 2^472177381 is an apocalyptic number.

It is an amenable number.

472177381 is a deficient number, since it is larger than the sum of its proper divisors (39115469).

472177381 is a wasteful number, since it uses less digits than its factorization.

472177381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2793975 (or 2793962 counting only the distinct ones).

The product of its digits is 65856, while the sum is 40.

The square root of 472177381 is about 21729.6429100894. The cubic root of 472177381 is about 778.6968053655.

The spelling of 472177381 in words is "four hundred seventy-two million, one hundred seventy-seven thousand, three hundred eighty-one".