73779025 has 6 divisors (see below), whose sum is σ = 91486022. Its totient is φ = 59023200.

The previous prime is 73779023. The next prime is 73779047. The reversal of 73779025 is 52097737.

It can be written as a sum of positive squares in 3 ways, for example, as 25281 + 73753744 = 159^2 + 8588^2 .

It is not a de Polignac number, because 73779025 - 2¹ = 73779023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73779023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1475556 + ... + 1475605.

Almost surely, 2^73779025 is an apocalyptic number.

It is an amenable number.

73779025 is a deficient number, since it is larger than the sum of its proper divisors (17706997).

73779025 is a wasteful number, since it uses less digits than its factorization.

73779025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951171 (or 2951166 counting only the distinct ones).

The product of its (nonzero) digits is 92610, while the sum is 40.

The square root of 73779025 is about 8589.4717532570. The cubic root of 73779025 is about 419.4153334994.

The spelling of 73779025 in words is "seventy-three million, seven hundred seventy-nine thousand, twenty-five".