64940734 has 4 divisors (see below), whose sum is σ = 97411104. Its totient is φ = 32470366.

The previous prime is 64940723. The next prime is 64940767. The reversal of 64940734 is 43704946.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43704946 = 2 ⋅21852473.

It is a junction number, because it is equal to n+sod(n) for n = 64940693 and 64940702.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16235182 + ... + 16235185.

It is an arithmetic number, because the mean of its divisors is an integer number (24352776).

Almost surely, 2^64940734 is an apocalyptic number.

64940734 is a deficient number, since it is larger than the sum of its proper divisors (32470370).

64940734 is a wasteful number, since it uses less digits than its factorization.

64940734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32470369.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 64940734 is about 8058.5813888054. The cubic root of 64940734 is about 401.9503375034.

The spelling of 64940734 in words is "sixty-four million, nine hundred forty thousand, seven hundred thirty-four".