65426890 has 8 divisors (see below), whose sum is σ = 117768420. Its totient is φ = 26170752.

The previous prime is 65426873. The next prime is 65426909. The reversal of 65426890 is 9862456.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 64850809 + 576081 = 8053^2 + 759^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×65426890³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3271335 + ... + 3271354.

Almost surely, 2^65426890 is an apocalyptic number.

65426890 is a deficient number, since it is larger than the sum of its proper divisors (52341530).

65426890 is a wasteful number, since it uses less digits than its factorization.

65426890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6542696.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 65426890 is about 8088.6890161509. The cubic root of 65426890 is about 402.9508649588.

The spelling of 65426890 in words is "sixty-five million, four hundred twenty-six thousand, eight hundred ninety".