1993522 has 12 divisors (see below), whose sum is σ = 3177450. Its totient is φ = 937856.

The previous prime is 1993513. The next prime is 1993529. The reversal of 1993522 is 2253991.

It can be written as a sum of positive squares in 3 ways, for example, as 1610361 + 383161 = 1269^2 + 619^2 .

It is not an unprimeable number, because it can be changed into a prime (1993529) 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, 1147 + ... + 2302.

2^1993522 is an apocalyptic number.

1993522 is a deficient number, since it is larger than the sum of its proper divisors (1183928).

1993522 is a wasteful number, since it uses less digits than its factorization.

1993522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3485 (or 3468 counting only the distinct ones).

The product of its digits is 4860, while the sum is 31.

The square root of 1993522 is about 1411.9213859135. The cubic root of 1993522 is about 125.8559283821.

It can be divided in two parts, 199 and 3522, that added together give a square (3721 = 61²).

The spelling of 1993522 in words is "one million, nine hundred ninety-three thousand, five hundred twenty-two".