97919156 has 6 divisors (see below), whose sum is σ = 171358530. Its totient is φ = 48959576.

The previous prime is 97919149. The next prime is 97919183. The reversal of 97919156 is 65191979.

It can be written as a sum of positive squares in only one way, i.e., 94750756 + 3168400 = 9734^2 + 1780^2 .

It is a super-2 number, since 2×97919156² = 19176322223504672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97919156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12239891 + ... + 12239898.

It is an arithmetic number, because the mean of its divisors is an integer number (28559755).

Almost surely, 2^97919156 is an apocalyptic number.

It is an amenable number.

97919156 is a deficient number, since it is larger than the sum of its proper divisors (73439374).

97919156 is a wasteful number, since it uses less digits than its factorization.

97919156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24479793 (or 24479791 counting only the distinct ones).

The product of its digits is 153090, while the sum is 47.

The square root of 97919156 is about 9895.4108555431. The cubic root of 97919156 is about 460.9168167396.

The spelling of 97919156 in words is "ninety-seven million, nine hundred nineteen thousand, one hundred fifty-six".