65299038 has 16 divisors (see below), whose sum is σ = 149255040. Its totient is φ = 18656856.

The previous prime is 65299037. The next prime is 65299049. The reversal of 65299038 is 83099256.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1554739 = 65299038 / (6 + 5 + 2 + 9 + 9 + 0 + 3 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65299037) 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, 777328 + ... + 777411.

It is an arithmetic number, because the mean of its divisors is an integer number (9328440).

Almost surely, 2^65299038 is an apocalyptic number.

65299038 is an abundant number, since it is smaller than the sum of its proper divisors (83956002).

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

65299038 is a wasteful number, since it uses less digits than its factorization.

65299038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554751.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 65299038 is about 8080.7820166120. The cubic root of 65299038 is about 402.6882223462.

The spelling of 65299038 in words is "sixty-five million, two hundred ninety-nine thousand, thirty-eight".