1982867554 has 4 divisors (see below), whose sum is σ = 2974301334. Its totient is φ = 991433776.

The previous prime is 1982867503. The next prime is 1982867567. The reversal of 1982867554 is 4557682891.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1982297529 + 570025 = 44523^2 + 755^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1982867495 and 1982867504.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495716887 + ... + 495716890.

Almost surely, 2^1982867554 is an apocalyptic number.

1982867554 is a deficient number, since it is larger than the sum of its proper divisors (991433780).

1982867554 is an equidigital number, since it uses as much as digits as its factorization.

1982867554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991433779.

The product of its digits is 4838400, while the sum is 55.

The square root of 1982867554 is about 44529.4010065260. The cubic root of 1982867554 is about 1256.3131399203.

The spelling of 1982867554 in words is "one billion, nine hundred eighty-two million, eight hundred sixty-seven thousand, five hundred fifty-four".