43479491 has 8 divisors (see below), whose sum is σ = 47563824. Its totient is φ = 39417120.

The previous prime is 43479487. The next prime is 43479503. The reversal of 43479491 is 19497434.

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

It is a cyclic number.

It is not a de Polignac number, because 43479491 - 2² = 43479487 is a prime.

It is a super-2 number, since 2×43479491² = 3780932275238162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43479481) 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, 1196 + ... + 9401.

It is an arithmetic number, because the mean of its divisors is an integer number (5945478).

Almost surely, 2^43479491 is an apocalyptic number.

43479491 is a deficient number, since it is larger than the sum of its proper divisors (4084333).

43479491 is a wasteful number, since it uses less digits than its factorization.

43479491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10981.

The product of its digits is 108864, while the sum is 41.

The square root of 43479491 is about 6593.8980125568. The cubic root of 43479491 is about 351.6372031449.

The spelling of 43479491 in words is "forty-three million, four hundred seventy-nine thousand, four hundred ninety-one".