65773420 has 24 divisors (see below), whose sum is σ = 141858864. Its totient is φ = 25598016.

The previous prime is 65773417. The next prime is 65773429. The reversal of 65773420 is 2437756.

It is a happy number.

It is a super-2 number, since 2×65773420² = 8652285556992800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65773429) 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, 43702 + ... + 45181.

It is an arithmetic number, because the mean of its divisors is an integer number (5910786).

Almost surely, 2^65773420 is an apocalyptic number.

It is an amenable number.

65773420 is an abundant number, since it is smaller than the sum of its proper divisors (76085444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65773420 is a wasteful number, since it uses less digits than its factorization.

65773420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88929 (or 88927 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 65773420 is about 8110.0813806028. The cubic root of 65773420 is about 403.6610151929.

The spelling of 65773420 in words is "sixty-five million, seven hundred seventy-three thousand, four hundred twenty".