64620802 has 8 divisors (see below), whose sum is σ = 100058112. Its totient is φ = 31268100.

The previous prime is 64620781. The next prime is 64620811. The reversal of 64620802 is 20802646.

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

It is a super-2 number, since 2×64620802² = 8351696102246408, which contains 22 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, 521074 + ... + 521197.

It is an arithmetic number, because the mean of its divisors is an integer number (12507264).

Almost surely, 2^64620802 is an apocalyptic number.

64620802 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

64620802 is a deficient number, since it is larger than the sum of its proper divisors (35437310).

64620802 is a wasteful number, since it uses less digits than its factorization.

64620802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042304.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 64620802 is about 8038.7064879867. The cubic root of 64620802 is about 401.2891780859.

The spelling of 64620802 in words is "sixty-four million, six hundred twenty thousand, eight hundred two".