65047290 has 128 divisors (see below), whose sum is σ = 201553920. Its totient is φ = 13036800.

The previous prime is 65047273. The next prime is 65047303. The reversal of 65047290 is 9274056.

It is a super-2 number, since 2×65047290² = 8462299872688200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66505 + ... + 67475.

It is an arithmetic number, because the mean of its divisors is an integer number (1574640).

Almost surely, 2^65047290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65047290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100776960).

65047290 is an abundant number, since it is smaller than the sum of its proper divisors (136506630).

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

65047290 is a wasteful number, since it uses less digits than its factorization.

65047290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 65047290 is about 8065.1900163604. The cubic root of 65047290 is about 402.1700599760.

The spelling of 65047290 in words is "sixty-five million, forty-seven thousand, two hundred ninety".