474211621 has 8 divisors (see below), whose sum is σ = 519062264. Its totient is φ = 430557120.

The previous prime is 474211613. The next prime is 474211637. The reversal of 474211621 is 126112474.

It can be written as a sum of positive squares in 4 ways, for example, as 62568100 + 411643521 = 7910^2 + 20289^2 .

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 474211621 - 2³ = 474211613 is a prime.

It is a super-2 number, since 2×474211621² = 449753322982895282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 474211621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474211021) 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, 298206 + ... + 299791.

It is an arithmetic number, because the mean of its divisors is an integer number (64882783).

Almost surely, 2^474211621 is an apocalyptic number.

It is an amenable number.

474211621 is a deficient number, since it is larger than the sum of its proper divisors (44850643).

474211621 is a wasteful number, since it uses less digits than its factorization.

474211621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598071.

The product of its digits is 2688, while the sum is 28.

The square root of 474211621 is about 21776.4005519737. The cubic root of 474211621 is about 779.8134667911.

The spelling of 474211621 in words is "four hundred seventy-four million, two hundred eleven thousand, six hundred twenty-one".