65213970 has 32 divisors (see below), whose sum is σ = 163320192. Its totient is φ = 16634112.

The previous prime is 65213969. The next prime is 65213971. The reversal of 65213970 is 7931256.

It is an interprime number because it is at equal distance from previous prime (65213969) and next prime (65213971).

It is not an unprimeable number, because it can be changed into a prime (65213971) 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, 46567 + ... + 47946.

It is an arithmetic number, because the mean of its divisors is an integer number (5103756).

Almost surely, 2^65213970 is an apocalyptic number.

65213970 is an abundant number, since it is smaller than the sum of its proper divisors (98106222).

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

65213970 is a wasteful number, since it uses less digits than its factorization.

65213970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94546.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 65213970 is about 8075.5167017349. The cubic root of 65213970 is about 402.5132796565.

The spelling of 65213970 in words is "sixty-five million, two hundred thirteen thousand, nine hundred seventy".