1098457 has 8 divisors (see below), whose sum is σ = 1157184. Its totient is φ = 1040688.

The previous prime is 1098451. The next prime is 1098463. The reversal of 1098457 is 7548901.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1098451) and next prime (1098463).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1098457 - 2¹⁵ = 1065689 is a prime.

It is a Duffinian number.

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (1098451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3603 + ... + 3895.

It is an arithmetic number, because the mean of its divisors is an integer number (144648).

2^1098457 is an apocalyptic number.

It is an amenable number.

1098457 is a deficient number, since it is larger than the sum of its proper divisors (58727).

1098457 is a wasteful number, since it uses less digits than its factorization.

1098457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 1098457 is about 1048.0729936412. The cubic root of 1098457 is about 103.1797220439.

The spelling of 1098457 in words is "one million, ninety-eight thousand, four hundred fifty-seven".