76620506 has 4 divisors (see below), whose sum is σ = 114930762. Its totient is φ = 38310252.

The previous prime is 76620493. The next prime is 76620517. The reversal of 76620506 is 60502667.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 48094225 + 28526281 = 6935^2 + 5341^2 .

It is a super-4 number, since 4×76620506⁴ (a number of 33 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19155125 + ... + 19155128.

Almost surely, 2^76620506 is an apocalyptic number.

76620506 is a deficient number, since it is larger than the sum of its proper divisors (38310256).

76620506 is a wasteful number, since it uses less digits than its factorization.

76620506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38310255.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 76620506 is about 8753.3140009941. The cubic root of 76620506 is about 424.7320220692.

The spelling of 76620506 in words is "seventy-six million, six hundred twenty thousand, five hundred six".