1098365807 has 32 divisors (see below), whose sum is σ = 1430161920. Its totient is φ = 818455680.

The previous prime is 1098365797. The next prime is 1098365837. The reversal of 1098365807 is 7085638901.

It is a happy number.

It is not a de Polignac number, because 1098365807 - 2¹⁰ = 1098364783 is a prime.

It is a super-2 number, since 2×1098365807² = 2412814891973522498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098365837) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236633 + ... + 241229.

It is an arithmetic number, because the mean of its divisors is an integer number (44692560).

Almost surely, 2^1098365807 is an apocalyptic number.

1098365807 is a deficient number, since it is larger than the sum of its proper divisors (331796113).

1098365807 is a wasteful number, since it uses less digits than its factorization.

1098365807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4751.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 1098365807 is about 33141.6023601756. The cubic root of 1098365807 is about 1031.7686666622.

The spelling of 1098365807 in words is "one billion, ninety-eight million, three hundred sixty-five thousand, eight hundred seven".