1098967972 has 12 divisors (see below), whose sum is σ = 1935444700. Its totient is φ = 545983776.

The previous prime is 1098967967. The next prime is 1098967993. The reversal of 1098967972 is 2797698901.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 618218496 + 480749476 = 24864^2 + 21926^2 .

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 874347 + ... + 875602.

Almost surely, 2^1098967972 is an apocalyptic number.

It is an amenable number.

1098967972 is a deficient number, since it is larger than the sum of its proper divisors (836476728).

1098967972 is a wasteful number, since it uses less digits than its factorization.

1098967972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750110 (or 1750108 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 58.

The square root of 1098967972 is about 33150.6858450923. The cubic root of 1098967972 is about 1031.9571835390.

It can be divided in two parts, 10989 and 67972, that added together give a square (78961 = 281²).

The spelling of 1098967972 in words is "one billion, ninety-eight million, nine hundred sixty-seven thousand, nine hundred seventy-two".