64949401 has 16 divisors (see below), whose sum is σ = 78288768. Its totient is φ = 53152000.

The previous prime is 64949399. The next prime is 64949411. The reversal of 64949401 is 10494946.

It is not a de Polignac number, because 64949401 - 2¹ = 64949399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64949411) 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, 3250 + ... + 11851.

It is an arithmetic number, because the mean of its divisors is an integer number (4893048).

Almost surely, 2^64949401 is an apocalyptic number.

It is an amenable number.

64949401 is a deficient number, since it is larger than the sum of its proper divisors (13339367).

64949401 is a wasteful number, since it uses less digits than its factorization.

64949401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15152.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 64949401 is about 8059.1191205987. The cubic root of 64949401 is about 401.9682181585.

The spelling of 64949401 in words is "sixty-four million, nine hundred forty-nine thousand, four hundred one".