9698139 has 12 divisors (see below), whose sum is σ = 15282072. Its totient is φ = 5877600.

The previous prime is 9698137. The next prime is 9698141. The reversal of 9698139 is 9318969.

9698139 = 397² + 398² + ... + 450².

It is an interprime number because it is at equal distance from previous prime (9698137) and next prime (9698141).

It is not a de Polignac number, because 9698139 - 2¹ = 9698137 is a prime.

It is an Ulam number.

It is a zygodrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 9698094 and 9698103.

It is not an unprimeable number, because it can be changed into a prime (9698131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48882 + ... + 49079.

It is an arithmetic number, because the mean of its divisors is an integer number (1273506).

Almost surely, 2^9698139 is an apocalyptic number.

9698139 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

9698139 is a deficient number, since it is larger than the sum of its proper divisors (5583933).

9698139 is a wasteful number, since it uses less digits than its factorization.

9698139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97978 (or 97975 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 9698139 is about 3114.1835206038. The cubic root of 9698139 is about 213.2534838426.

It can be divided in two parts, 96981 and 39, that added together give a triangular number (97020 = T₄₄₀).

The spelling of 9698139 in words is "nine million, six hundred ninety-eight thousand, one hundred thirty-nine".