73671399 has 6 divisors (see below), whose sum is σ = 106414256. Its totient is φ = 49114260.

The previous prime is 73671373. The next prime is 73671443. The reversal of 73671399 is 99317637.

It is not a de Polignac number, because 73671399 - 2¹² = 73667303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73671359) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4092847 + ... + 4092864.

Almost surely, 2^73671399 is an apocalyptic number.

73671399 is a deficient number, since it is larger than the sum of its proper divisors (32742857).

73671399 is a wasteful number, since it uses less digits than its factorization.

73671399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8185717 (or 8185714 counting only the distinct ones).

The product of its digits is 214326, while the sum is 45.

The square root of 73671399 is about 8583.2044715246. The cubic root of 73671399 is about 419.2112919397.

The spelling of 73671399 in words is "seventy-three million, six hundred seventy-one thousand, three hundred ninety-nine".