97879240 has 16 divisors (see below), whose sum is σ = 220228380. Its totient is φ = 39151680.

The previous prime is 97879219. The next prime is 97879247. The reversal of 97879240 is 4297879.

It can be written as a sum of positive squares in 2 ways, for example, as 97101316 + 777924 = 9854^2 + 882^2 .

It is not an unprimeable number, because it can be changed into a prime (97879247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1223451 + ... + 1223530.

Almost surely, 2^97879240 is an apocalyptic number.

It is an amenable number.

97879240 is an abundant number, since it is smaller than the sum of its proper divisors (122349140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97879240 is a wasteful number, since it uses less digits than its factorization.

97879240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2446992 (or 2446988 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 97879240 is about 9893.3937554309. The cubic root of 97879240 is about 460.8541784814.

It can be divided in two parts, 9 and 7879240, that added together give a square (7879249 = 2807²).

The spelling of 97879240 in words is "ninety-seven million, eight hundred seventy-nine thousand, two hundred forty".