472067861 has 4 divisors (see below), whose sum is σ = 472235724. Its totient is φ = 471900000.

The previous prime is 472067857. The next prime is 472067881. The reversal of 472067861 is 168760274.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 133287025 + 338780836 = 11545^2 + 18406^2 .

It is a cyclic number.

It is not a de Polignac number, because 472067861 - 2² = 472067857 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 (472067821) 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, 79640 + ... + 85361.

It is an arithmetic number, because the mean of its divisors is an integer number (118058931).

Almost surely, 2^472067861 is an apocalyptic number.

It is an amenable number.

472067861 is a deficient number, since it is larger than the sum of its proper divisors (167863).

472067861 is a wasteful number, since it uses less digits than its factorization.

472067861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167862.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 472067861 is about 21727.1227041226. The cubic root of 472067861 is about 778.6365953173.

The spelling of 472067861 in words is "four hundred seventy-two million, sixty-seven thousand, eight hundred sixty-one".