65693428 has 24 divisors (see below), whose sum is σ = 121080960. Its totient is φ = 31125600.

The previous prime is 65693377. The next prime is 65693429. The reversal of 65693428 is 82439656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65693429) 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, 6753 + ... + 13303.

It is an arithmetic number, because the mean of its divisors is an integer number (5045040).

Almost surely, 2^65693428 is an apocalyptic number.

It is an amenable number.

65693428 is a deficient number, since it is larger than the sum of its proper divisors (55387532).

65693428 is a wasteful number, since it uses less digits than its factorization.

65693428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6687 (or 6685 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 65693428 is about 8105.1482404704. The cubic root of 65693428 is about 403.4973079753.

The spelling of 65693428 in words is "sixty-five million, six hundred ninety-three thousand, four hundred twenty-eight".