71428498 has 8 divisors (see below), whose sum is σ = 107461692. Its totient is φ = 35607936.

The previous prime is 71428493. The next prime is 71428507. The reversal of 71428498 is 89482417.

It can be written as a sum of positive squares in 2 ways, for example, as 70442449 + 986049 = 8393^2 + 993^2 .

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

It is not an unprimeable number, because it can be changed into a prime (71428493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52315 + ... + 53662.

Almost surely, 2^71428498 is an apocalyptic number.

71428498 is a deficient number, since it is larger than the sum of its proper divisors (36033194).

71428498 is a wasteful number, since it uses less digits than its factorization.

71428498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106316.

The product of its digits is 129024, while the sum is 43.

The square root of 71428498 is about 8451.5382031912. The cubic root of 71428498 is about 414.9131245061.

The spelling of 71428498 in words is "seventy-one million, four hundred twenty-eight thousand, four hundred ninety-eight".