71454399 has 8 divisors (see below), whose sum is σ = 99414912. Its totient is φ = 45565080.

The previous prime is 71454389. The next prime is 71454401. The reversal of 71454399 is 99345417.

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

It is not a de Polignac number, because 71454399 - 2⁸ = 71454143 is a prime.

It is a super-2 number, since 2×71454399² = 10211462272902402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71454399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71454319) 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, 517717 + ... + 517854.

It is an arithmetic number, because the mean of its divisors is an integer number (12426864).

Almost surely, 2^71454399 is an apocalyptic number.

71454399 is a deficient number, since it is larger than the sum of its proper divisors (27960513).

71454399 is a wasteful number, since it uses less digits than its factorization.

71454399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035597.

The product of its digits is 136080, while the sum is 42.

The square root of 71454399 is about 8453.0703889179. The cubic root of 71454399 is about 414.9632695996.

The spelling of 71454399 in words is "seventy-one million, four hundred fifty-four thousand, three hundred ninety-nine".