65711490 has 32 divisors (see below), whose sum is σ = 169839936. Its totient is φ = 16175040.

The previous prime is 65711453. The next prime is 65711491. The reversal of 65711490 is 9411756.

It is not an unprimeable number, because it can be changed into a prime (65711491) 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, 83856 + ... + 84635.

It is an arithmetic number, because the mean of its divisors is an integer number (5307498).

Almost surely, 2^65711490 is an apocalyptic number.

65711490 is an abundant number, since it is smaller than the sum of its proper divisors (104128446).

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

65711490 is a wasteful number, since it uses less digits than its factorization.

65711490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168514.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 65711490 is about 8106.2623939766. The cubic root of 65711490 is about 403.5342842796.

The spelling of 65711490 in words is "sixty-five million, seven hundred eleven thousand, four hundred ninety".