1098772 has 6 divisors (see below), whose sum is σ = 1922858. Its totient is φ = 549384.

The previous prime is 1098737. The next prime is 1098787. The reversal of 1098772 is 2778901.

It can be written as a sum of positive squares in only one way, i.e., 1089936 + 8836 = 1044^2 + 94^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137343 + ... + 137350.

2^1098772 is an apocalyptic number.

It is an amenable number.

1098772 is a deficient number, since it is larger than the sum of its proper divisors (824086).

1098772 is a wasteful number, since it uses less digits than its factorization.

1098772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274697 (or 274695 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 1098772 is about 1048.2232586620. The cubic root of 1098772 is about 103.1895839096.

The spelling of 1098772 in words is "one million, ninety-eight thousand, seven hundred seventy-two".