45778623 has 8 divisors (see below), whose sum is σ = 66587136. Its totient is φ = 27744600.

The previous prime is 45778597. The next prime is 45778627. The reversal of 45778623 is 32687754.

45778623 = 1432² + 1433² + ... + 1453².

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

It is not a de Polignac number, because 45778623 - 2⁹ = 45778111 is a prime.

It is a super-2 number, since 2×45778623² = 4191364647552258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45778627) 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, 693583 + ... + 693648.

It is an arithmetic number, because the mean of its divisors is an integer number (8323392).

Almost surely, 2^45778623 is an apocalyptic number.

45778623 is a deficient number, since it is larger than the sum of its proper divisors (20808513).

45778623 is a wasteful number, since it uses less digits than its factorization.

45778623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387245.

The product of its digits is 282240, while the sum is 42.

The square root of 45778623 is about 6765.9901714383. The cubic root of 45778623 is about 357.7290767791.

The spelling of 45778623 in words is "forty-five million, seven hundred seventy-eight thousand, six hundred twenty-three".