99772954 has 4 divisors (see below), whose sum is σ = 149659434. Its totient is φ = 49886476.

The previous prime is 99772931. The next prime is 99772961. The reversal of 99772954 is 45927799.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45927799 = 613 ⋅74923.

It can be written as a sum of positive squares in only one way, i.e., 75220929 + 24552025 = 8673^2 + 4955^2 .

It is a super-2 number, since 2×99772954² = 19909284699772232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24943237 + ... + 24943240.

Almost surely, 2^99772954 is an apocalyptic number.

99772954 is a deficient number, since it is larger than the sum of its proper divisors (49886480).

99772954 is a wasteful number, since it uses less digits than its factorization.

99772954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49886479.

The product of its digits is 1428840, while the sum is 52.

The square root of 99772954 is about 9988.6412489387. The cubic root of 99772954 is about 463.8073324400.

The spelling of 99772954 in words is "ninety-nine million, seven hundred seventy-two thousand, nine hundred fifty-four".