97829481 has 4 divisors (see below), whose sum is σ = 130439312. Its totient is φ = 65219652.

The previous prime is 97829453. The next prime is 97829483. The reversal of 97829481 is 18492879.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18492879 = 3 ⋅6164293.

It is not a de Polignac number, because 97829481 - 2¹⁰ = 97828457 is a prime.

It is a super-2 number, since 2×97829481² = 19141214705458722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 97829481.

It is not an unprimeable number, because it can be changed into a prime (97829483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16304911 + ... + 16304916.

It is an arithmetic number, because the mean of its divisors is an integer number (32609828).

Almost surely, 2^97829481 is an apocalyptic number.

It is an amenable number.

97829481 is a deficient number, since it is larger than the sum of its proper divisors (32609831).

97829481 is a wasteful number, since it uses less digits than its factorization.

97829481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32609830.

The product of its digits is 290304, while the sum is 48.

The square root of 97829481 is about 9890.8786768416. The cubic root of 97829481 is about 460.7760702257.

The spelling of 97829481 in words is "ninety-seven million, eight hundred twenty-nine thousand, four hundred eighty-one".