65398470 has 32 divisors (see below), whose sum is σ = 157531392. Its totient is φ = 17375712.

The previous prime is 65398469. The next prime is 65398471. The reversal of 65398470 is 7489356.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (65398469) and next prime (65398471).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65398471) 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, 4639 + ... + 12341.

It is an arithmetic number, because the mean of its divisors is an integer number (4922856).

Almost surely, 2^65398470 is an apocalyptic number.

65398470 is an abundant number, since it is smaller than the sum of its proper divisors (92132922).

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

65398470 is a wasteful number, since it uses less digits than its factorization.

65398470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7996.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 65398470 is about 8086.9320511551. The cubic root of 65398470 is about 402.8925121820.

The spelling of 65398470 in words is "sixty-five million, three hundred ninety-eight thousand, four hundred seventy".