65654997 has 8 divisors (see below), whose sum is σ = 87785280. Its totient is φ = 43647360.

The previous prime is 65654989. The next prime is 65654999. The reversal of 65654997 is 79945656.

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

It is not a de Polignac number, because 65654997 - 2³ = 65654989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65654999) 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, 29404 + ... + 31557.

It is an arithmetic number, because the mean of its divisors is an integer number (10973160).

Almost surely, 2^65654997 is an apocalyptic number.

It is an amenable number.

65654997 is a deficient number, since it is larger than the sum of its proper divisors (22130283).

65654997 is a wasteful number, since it uses less digits than its factorization.

65654997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61323.

The product of its digits is 2041200, while the sum is 51.

The square root of 65654997 is about 8102.7771165200. Note that the first 3 decimals coincide. The cubic root of 65654997 is about 403.4186099465.

The spelling of 65654997 in words is "sixty-five million, six hundred fifty-four thousand, nine hundred ninety-seven".