71465473 has 4 divisors (see below), whose sum is σ = 71750448. Its totient is φ = 71180500.

The previous prime is 71465437. The next prime is 71465503. The reversal of 71465473 is 37456417.

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: 37456417 = 67 ⋅559051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71465473 is a prime.

It is a super-2 number, since 2×71465473² = 10214627662227458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71465423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142111 + ... + 142612.

It is an arithmetic number, because the mean of its divisors is an integer number (17937612).

Almost surely, 2^71465473 is an apocalyptic number.

It is an amenable number.

71465473 is a deficient number, since it is larger than the sum of its proper divisors (284975).

71465473 is a wasteful number, since it uses less digits than its factorization.

71465473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284974.

The product of its digits is 70560, while the sum is 37.

The square root of 71465473 is about 8453.7253918021. The cubic root of 71465473 is about 414.9847054895.

The spelling of 71465473 in words is "seventy-one million, four hundred sixty-five thousand, four hundred seventy-three".