80734719 has 16 divisors (see below), whose sum is σ = 116488064. Its totient is φ = 49442400.

The previous prime is 80734711. The next prime is 80734723. The reversal of 80734719 is 91743708.

It is not a de Polignac number, because 80734719 - 2³ = 80734711 is a prime.

It is a super-2 number, since 2×80734719² = 13036189704017922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80734711) 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, 3324 + ... + 13134.

It is an arithmetic number, because the mean of its divisors is an integer number (7280504).

Almost surely, 2^80734719 is an apocalyptic number.

80734719 is a deficient number, since it is larger than the sum of its proper divisors (35753345).

80734719 is a wasteful number, since it uses less digits than its factorization.

80734719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10038.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 80734719 is about 8985.2500799922. The cubic root of 80734719 is about 432.2020070767.

The spelling of 80734719 in words is "eighty million, seven hundred thirty-four thousand, seven hundred nineteen".