45978471 has 24 divisors (see below), whose sum is σ = 82802304. Its totient is φ = 23884560.

The previous prime is 45978451. The next prime is 45978497. The reversal of 45978471 is 17487954.

It is a happy number.

It is not a de Polignac number, because 45978471 - 2⁹ = 45977959 is a prime.

It is a super-3 number, since 3×45978471³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45978451) 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, 32481 + ... + 33866.

It is an arithmetic number, because the mean of its divisors is an integer number (3450096).

Almost surely, 2^45978471 is an apocalyptic number.

45978471 is a deficient number, since it is larger than the sum of its proper divisors (36823833).

45978471 is a wasteful number, since it uses less digits than its factorization.

45978471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66371 (or 66368 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 45978471 is about 6780.7426584409. The cubic root of 45978471 is about 358.2488802356.

The spelling of 45978471 in words is "forty-five million, nine hundred seventy-eight thousand, four hundred seventy-one".