1976542 has 4 divisors (see below), whose sum is σ = 2964816. Its totient is φ = 988270.

The previous prime is 1976537. The next prime is 1976543. The reversal of 1976542 is 2456791.

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

It is a d-powerful number, because it can be written as 1 + 9⁴ + 7⁵ + 6² + 5⁹ + 4 + 2³ .

It is a junction number, because it is equal to n+sod(n) for n = 1976498 and 1976507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1976543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494134 + ... + 494137.

It is an arithmetic number, because the mean of its divisors is an integer number (741204).

2^1976542 is an apocalyptic number.

1976542 is a deficient number, since it is larger than the sum of its proper divisors (988274).

1976542 is an equidigital number, since it uses as much as digits as its factorization.

1976542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988273.

The product of its digits is 15120, while the sum is 34.

The square root of 1976542 is about 1405.8954441921. The cubic root of 1976542 is about 125.4975793568.

Subtracting 1976542 from its reverse (2456791), we obtain a square (480249 = 693²).

The spelling of 1976542 in words is "one million, nine hundred seventy-six thousand, five hundred forty-two".