3477983021 has 4 divisors (see below), whose sum is σ = 3597913500. Its totient is φ = 3358052544.

The previous prime is 3477982933. The next prime is 3477983023. The reversal of 3477983021 is 1203897743.

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 1681410025 + 1796572996 = 41005^2 + 42386^2 .

It is a cyclic number.

It is not a de Polignac number, because 3477983021 - 2¹⁸ = 3477720877 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 (3477983023) 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, 59965196 + ... + 59965253.

It is an arithmetic number, because the mean of its divisors is an integer number (899478375).

Almost surely, 2^3477983021 is an apocalyptic number.

It is an amenable number.

3477983021 is a deficient number, since it is larger than the sum of its proper divisors (119930479).

3477983021 is a wasteful number, since it uses less digits than its factorization.

3477983021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119930478.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 3477983021 is about 58974.4268390970. The cubic root of 3477983021 is about 1515.1041432691.

The spelling of 3477983021 in words is "three billion, four hundred seventy-seven million, nine hundred eighty-three thousand, twenty-one".