65973420 has 48 divisors (see below), whose sum is σ = 205252320. Its totient is φ = 17592768.

The previous prime is 65973419. The next prime is 65973421. The reversal of 65973420 is 2437956.

It is an interprime number because it is at equal distance from previous prime (65973419) and next prime (65973421).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (65973421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60547 + ... + 61626.

It is an arithmetic number, because the mean of its divisors is an integer number (4276090).

Almost surely, 2^65973420 is an apocalyptic number.

65973420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65973420 is an abundant number, since it is smaller than the sum of its proper divisors (139278900).

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

65973420 is a wasteful number, since it uses less digits than its factorization.

65973420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122191 (or 122183 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 65973420 is about 8122.4023539837. The cubic root of 65973420 is about 404.0697441921.

The spelling of 65973420 in words is "sixty-five million, nine hundred seventy-three thousand, four hundred twenty".