65421204 has 24 divisors (see below), whose sum is σ = 152802048. Its totient is φ = 21785280.

The previous prime is 65421197. The next prime is 65421211. The reversal of 65421204 is 40212456.

It is an interprime number because it is at equal distance from previous prime (65421197) and next prime (65421211).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13789 + ... + 17915.

It is an arithmetic number, because the mean of its divisors is an integer number (6366752).

Almost surely, 2^65421204 is an apocalyptic number.

It is an amenable number.

65421204 is an abundant number, since it is smaller than the sum of its proper divisors (87380844).

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

65421204 is a wasteful number, since it uses less digits than its factorization.

65421204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5455 (or 5453 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 65421204 is about 8088.3375300491. The cubic root of 65421204 is about 402.9391916494.

The spelling of 65421204 in words is "sixty-five million, four hundred twenty-one thousand, two hundred four".