77380501 has 16 divisors (see below), whose sum is σ = 85962240. Its totient is φ = 69070320.

The previous prime is 77380469. The next prime is 77380519. The reversal of 77380501 is 10508377.

It is not a de Polignac number, because 77380501 - 2⁵ = 77380469 is a prime.

It is a super-2 number, since 2×77380501² = 11975483870022002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77380561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184470 + ... + 184888.

It is an arithmetic number, because the mean of its divisors is an integer number (5372640).

Almost surely, 2^77380501 is an apocalyptic number.

It is an amenable number.

77380501 is a deficient number, since it is larger than the sum of its proper divisors (8581739).

77380501 is a wasteful number, since it uses less digits than its factorization.

77380501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 77380501 is about 8796.6187253967. The cubic root of 77380501 is about 426.1317030533.

Adding to 77380501 its reverse (10508377), we get a palindrome (87888878).

The spelling of 77380501 in words is "seventy-seven million, three hundred eighty thousand, five hundred one".