79541990 has 16 divisors (see below), whose sum is σ = 156191760. Its totient is φ = 28924320.

The previous prime is 79541989. The next prime is 79541993. The reversal of 79541990 is 9914597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79541993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361445 + ... + 361664.

It is an arithmetic number, because the mean of its divisors is an integer number (9761985).

Almost surely, 2^79541990 is an apocalyptic number.

79541990 is a deficient number, since it is larger than the sum of its proper divisors (76649770).

79541990 is a wasteful number, since it uses less digits than its factorization.

79541990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723127.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 79541990 is about 8918.6316214989. The cubic root of 79541990 is about 430.0630698907.

The spelling of 79541990 in words is "seventy-nine million, five hundred forty-one thousand, nine hundred ninety".