71422099 has 24 divisors (see below), whose sum is σ = 87121440. Its totient is φ = 57286656.

The previous prime is 71422063. The next prime is 71422103. The reversal of 71422099 is 99022417.

It is a happy number.

It is not a de Polignac number, because 71422099 - 2⁷ = 71421971 is a prime.

It is a super-2 number, since 2×71422099² = 10202232451131602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71422009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 277779 + ... + 278035.

It is an arithmetic number, because the mean of its divisors is an integer number (3630060).

Almost surely, 2^71422099 is an apocalyptic number.

71422099 is a deficient number, since it is larger than the sum of its proper divisors (15699341).

71422099 is a wasteful number, since it uses less digits than its factorization.

71422099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 71422099 is about 8451.1596245722. The cubic root of 71422099 is about 414.9007339877.

The spelling of 71422099 in words is "seventy-one million, four hundred twenty-two thousand, ninety-nine".