64528702 has 16 divisors (see below), whose sum is σ = 117128160. Its totient is φ = 26028288.

The previous prime is 64528699. The next prime is 64528721. The reversal of 64528702 is 20782546.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 135327 + ... + 135802.

It is an arithmetic number, because the mean of its divisors is an integer number (7320510).

Almost surely, 2^64528702 is an apocalyptic number.

64528702 is a deficient number, since it is larger than the sum of its proper divisors (52599458).

64528702 is a wasteful number, since it uses less digits than its factorization.

64528702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271155.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 64528702 is about 8032.9759118274. The cubic root of 64528702 is about 401.0984432947.

It can be divided in two parts, 6452870 and 2, that multiplied together give a triangular number (12905740 = T₅₀₈₀).

The spelling of 64528702 in words is "sixty-four million, five hundred twenty-eight thousand, seven hundred two".