64702461 has 4 divisors (see below), whose sum is σ = 86269952. Its totient is φ = 43134972.

The previous prime is 64702441. The next prime is 64702481. The reversal of 64702461 is 16420746.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (64702441) and next prime (64702481).

It is not a de Polignac number, because 64702461 - 2⁶ = 64702397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64702411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10783741 + ... + 10783746.

It is an arithmetic number, because the mean of its divisors is an integer number (21567488).

Almost surely, 2^64702461 is an apocalyptic number.

It is an amenable number.

64702461 is a deficient number, since it is larger than the sum of its proper divisors (21567491).

64702461 is a wasteful number, since it uses less digits than its factorization.

64702461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21567490.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 64702461 is about 8043.7839975972. The cubic root of 64702461 is about 401.4581385378.

The spelling of 64702461 in words is "sixty-four million, seven hundred two thousand, four hundred sixty-one".