738428779 has 8 divisors (see below), whose sum is σ = 852944688. Its totient is φ = 631810560.

The previous prime is 738428771. The next prime is 738428783. The reversal of 738428779 is 977824837.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 738428779 - 2³ = 738428771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (738428771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1974222 + ... + 1974595.

It is an arithmetic number, because the mean of its divisors is an integer number (106618086).

Almost surely, 2^738428779 is an apocalyptic number.

738428779 is a deficient number, since it is larger than the sum of its proper divisors (114515909).

738428779 is a wasteful number, since it uses less digits than its factorization.

738428779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3948845.

The product of its digits is 4741632, while the sum is 55.

The square root of 738428779 is about 27174.0460550136. The cubic root of 738428779 is about 903.8635466863.

It can be divided in two parts, 73842 and 8779, that added together give a triangular number (82621 = T₄₀₆).

The spelling of 738428779 in words is "seven hundred thirty-eight million, four hundred twenty-eight thousand, seven hundred seventy-nine".