45947649 has 8 divisors (see below), whose sum is σ = 66832992. Its totient is φ = 27847040.

The previous prime is 45947647. The next prime is 45947653. The reversal of 45947649 is 94674954.

It is a happy number.

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 45947649 - 2¹ = 45947647 is a prime.

It is a super-2 number, since 2×45947649² = 4222372897254402, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 45947598 and 45947607.

It is not an unprimeable number, because it can be changed into a prime (45947647) 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, 696144 + ... + 696209.

It is an arithmetic number, because the mean of its divisors is an integer number (8354124).

Almost surely, 2^45947649 is an apocalyptic number.

It is an amenable number.

45947649 is a deficient number, since it is larger than the sum of its proper divisors (20885343).

45947649 is a wasteful number, since it uses less digits than its factorization.

45947649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392367.

The product of its digits is 1088640, while the sum is 48.

The square root of 45947649 is about 6778.4695175238. The cubic root of 45947649 is about 358.1688107668.

The spelling of 45947649 in words is "forty-five million, nine hundred forty-seven thousand, six hundred forty-nine".