65428662 has 32 divisors (see below), whose sum is σ = 145474560. Its totient is φ = 19481760.

The previous prime is 65428637. The next prime is 65428673. The reversal of 65428662 is 26682456.

It is a super-2 number, since 2×65428662² = 8561819622220488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 65428662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11112 + ... + 15947.

It is an arithmetic number, because the mean of its divisors is an integer number (4546080).

Almost surely, 2^65428662 is an apocalyptic number.

65428662 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

65428662 is an abundant number, since it is smaller than the sum of its proper divisors (80045898).

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

65428662 is a wasteful number, since it uses less digits than its factorization.

65428662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27108.

The product of its digits is 138240, while the sum is 39.

The square root of 65428662 is about 8088.7985510828. The cubic root of 65428662 is about 402.9545027214.

The spelling of 65428662 in words is "sixty-five million, four hundred twenty-eight thousand, six hundred sixty-two".