3573972 has 18 divisors (see below), whose sum is σ = 9034298. Its totient is φ = 1191312.

The previous prime is 3573971. The next prime is 3573979. The reversal of 3573972 is 2793753.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1971216 + 1602756 = 1404^2 + 1266^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 99277 = 3573972 / (3 + 5 + 7 + 3 + 9 + 7 + 2).

It is a d-powerful number, because it can be written as 3⁵ + 5⁹ + 7⁴ + 3¹³ + 9⁴ + 7⁵ + 2⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3573971) 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, 49603 + ... + 49674.

Almost surely, 2^3573972 is an apocalyptic number.

It is an amenable number.

3573972 is an abundant number, since it is smaller than the sum of its proper divisors (5460326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3573972 is a wasteful number, since it uses less digits than its factorization.

3573972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99287 (or 99282 counting only the distinct ones).

The product of its digits is 39690, while the sum is 36.

The square root of 3573972 is about 1890.4951732284. The cubic root of 3573972 is about 152.8916315791.

The spelling of 3573972 in words is "three million, five hundred seventy-three thousand, nine hundred seventy-two".